diff --git a/modules/account_invoice/invoice.py b/modules/account_invoice/invoice.py
index 24df42f640..d5b0bad1e9 100644
--- a/modules/account_invoice/invoice.py
+++ b/modules/account_invoice/invoice.py
@@ -2322,7 +2322,9 @@ class InvoiceLine(sequence_ordered(), ModelSQL, ModelView, TaxableMixin):
                 & ~Id('account', 'group_account_admin').in_(
                     Eval('context', {}).get('groups', []))),
                 })
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     note = fields.Text('Note')
     taxes = fields.Many2Many('account.invoice.line-account.tax',
         'line', 'tax', 'Taxes',
@@ -2518,6 +2520,10 @@ class InvoiceLine(sequence_ordered(), ModelSQL, ModelView, TaxableMixin):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @fields.depends(
         'type', 'quantity', 'unit_price', 'taxes_deductible_rate', 'invoice',
         '_parent_invoice.currency', 'currency', 'taxes',
diff --git a/modules/purchase/purchase.py b/modules/purchase/purchase.py
index c8f63bc538..f17183ddd5 100644
--- a/modules/purchase/purchase.py
+++ b/modules/purchase/purchase.py
@@ -1260,7 +1260,9 @@ class Line(sequence_ordered(), ModelSQL, ModelView):
         states={
             'readonly': Eval('purchase_state') != 'draft',
             })
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     note = fields.Text('Note')
     taxes = fields.Many2Many('purchase.line-account.tax',
         'line', 'tax', 'Taxes',
@@ -1657,6 +1659,10 @@ class Line(sequence_ordered(), ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @fields.depends(
         'type', 'quantity', 'unit_price',
         'purchase', '_parent_purchase.currency')
diff --git a/modules/purchase_request/purchase_request.py b/modules/purchase_request/purchase_request.py
index 2e5a6bda01..6d2807a531 100644
--- a/modules/purchase_request/purchase_request.py
+++ b/modules/purchase_request/purchase_request.py
@@ -40,7 +40,9 @@ class PurchaseRequest(ModelSQL, ModelView):
             },
         depends={'company'})
     description = fields.Text('Description', readonly=True)
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     party = fields.Many2One(
         'party.party', "Party", states=STATES,
         context={
@@ -253,6 +255,10 @@ class PurchaseRequest(ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @classmethod
     def _get_origin(cls):
         'Return the set of Model names for origin Reference'
diff --git a/modules/purchase_requisition/purchase.py b/modules/purchase_requisition/purchase.py
index 9c03dc2aaf..f577a6aa43 100644
--- a/modules/purchase_requisition/purchase.py
+++ b/modules/purchase_requisition/purchase.py
@@ -452,7 +452,9 @@ class PurchaseRequisitionLine(sequence_ordered(), ModelSQL, ModelView):
             help="The category of Unit of Measure for the product."),
         'on_change_with_product_uom_category')
     description = fields.Text("Description", states=_states)
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     quantity = fields.Float(
         "Quantity", digits='unit', required=True, states=_states)
     unit = fields.Many2One(
@@ -523,6 +525,10 @@ class PurchaseRequisitionLine(sequence_ordered(), ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @fields.depends(
         'quantity', 'unit_price',
         'requisition', '_parent_requisition.currency')
diff --git a/modules/sale/sale.py b/modules/sale/sale.py
index 268cd3ee75..94c5b74b24 100644
--- a/modules/sale/sale.py
+++ b/modules/sale/sale.py
@@ -1376,7 +1376,9 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
             'readonly': Eval('sale_state') != 'draft',
             },
         depends=['sale_state'])
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     note = fields.Text('Note')
     taxes = fields.Many2Many('sale.line-account.tax', 'line', 'tax', 'Taxes',
         order=[('tax.sequence', 'ASC'), ('tax.id', 'ASC')],
@@ -1725,6 +1727,10 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @fields.depends(
         'type', 'quantity', 'unit_price',
         'sale', '_parent_sale.currency')
diff --git a/modules/sale_opportunity/opportunity.py b/modules/sale_opportunity/opportunity.py
index 6077ea114e..50d12466d8 100644
--- a/modules/sale_opportunity/opportunity.py
+++ b/modules/sale_opportunity/opportunity.py
@@ -575,7 +575,9 @@ class SaleOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
             'readonly': _states['readonly'],
             })
     description = fields.Text("Description", states=_states)
-    summary = fields.Function(fields.Char("Summary"), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char("Summary"), 'on_change_with_summary',
+        searcher='search_summary')
     note = fields.Text("Note")
 
     company = fields.Function(
@@ -625,6 +627,10 @@ class SaleOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @fields.depends('opportunity', '_parent_opportunity.company')
     def on_change_with_company(self, name=None):
         return self.opportunity.company if self.opportunity else None
diff --git a/trytond/trytond/ir/attachment.py b/trytond/trytond/ir/attachment.py
index 8afdb32edf..e5496ccce5 100644
--- a/trytond/trytond/ir/attachment.py
+++ b/trytond/trytond/ir/attachment.py
@@ -30,7 +30,9 @@ class Attachment(ResourceMixin, ModelSQL, ModelView):
         ('link', 'Link'),
         ], 'Type', required=True)
     description = fields.Text('Description')
-    summary = fields.Function(fields.Char('Summary'), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char('Summary'), 'on_change_with_summary',
+        searcher='search_summary')
     link = fields.Char('Link', states={
             'invisible': Eval('type') != 'link',
             }, depends=['type'])
@@ -67,6 +69,10 @@ class Attachment(ResourceMixin, ModelSQL, ModelView):
     def on_change_with_summary(self, name=None):
         return firstline(self.description or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('description', *clause[1:])]
+
     @classmethod
     def fields_view_get(cls, view_id=None, view_type='form', level=None):
         pool = Pool()
diff --git a/trytond/trytond/ir/error.py b/trytond/trytond/ir/error.py
index 6c4e8da41b..66cad04780 100644
--- a/trytond/trytond/ir/error.py
+++ b/trytond/trytond/ir/error.py
@@ -55,7 +55,9 @@ class Error(Workflow, ModelView, ModelSQL):
     origin_string = origin.translated('origin')
     message = fields.Text("Message", readonly=True)
     description = fields.Text("Description", readonly=True)
-    summary = fields.Function(fields.Char("Summary"), 'on_change_with_summary')
+    summary = fields.Function(
+        fields.Char("Summary"), 'on_change_with_summary',
+        searcher='search_summary')
 
     processed_by = fields.Many2One(
         'res.user', "Processed by",
@@ -114,6 +116,10 @@ class Error(Workflow, ModelView, ModelSQL):
     def on_change_with_summary(self, name=None):
         return firstline(self.message or '')
 
+    @classmethod
+    def search_summary(cls, name, clause):
+        return [('message', *clause[1:])]
+
     def get_rec_name(self, name):
         if self.origin:
             return "%s - %s" % (self.origin_string, self.origin.rec_name)