diff --git a/purchase.py b/purchase.py
index 8b41516085..a9b0dae5fd 100644
--- a/purchase.py
+++ b/purchase.py
@@ -27,7 +27,8 @@ __all__ = ['Purchase', 'PurchaseIgnoredInvoice',
     'PurchaseRecreadtedInvoice', 'PurchaseLine', 'PurchaseLineTax',
     'PurchaseLineIgnoredMove', 'PurchaseLineRecreatedMove', 'PurchaseReport',
     'OpenSupplier', 'HandleShipmentExceptionAsk', 'HandleShipmentException',
-    'HandleInvoiceExceptionAsk', 'HandleInvoiceException']
+    'HandleInvoiceExceptionAsk', 'HandleInvoiceException',
+    'get_shipments_returns', 'search_shipments_returns']
 
 _STATES = {
     'readonly': Eval('state') != 'draft',
@@ -44,6 +45,36 @@ STATES = [
     ]
 
 
+def get_shipments_returns(model_name):
+    "Computes the returns or shipments"
+    def method(self, name):
+        Model = Pool().get(model_name)
+        shipments = set()
+        for line in self.lines:
+            for move in line.moves:
+                if isinstance(move.shipment, Model):
+                    shipments.add(move.shipment.id)
+        return list(shipments)
+    return method
+
+
+def search_shipments_returns(model_name):
+    "Search on shipments or returns"
+    def method(self, name, clause):
+        nested = clause[0].lstrip(name)
+        if nested:
+            return [('lines.moves.shipment' + nested,)
+                + tuple(clause[1:3]) + (model_name,) + tuple(clause[3:])]
+        else:
+            if isinstance(clause[2], basestring):
+                target = 'rec_name'
+            else:
+                target = 'id'
+            return [('lines.moves.shipment.' + target,)
+                + tuple(clause[1:3]) + (model_name,)]
+    return classmethod(method)
+
+
 class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
     'Purchase'
     __name__ = 'purchase.purchase'
@@ -155,10 +186,10 @@ class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
             ('exception', 'Exception'),
             ], 'Shipment State', readonly=True, required=True)
     shipments = fields.Function(fields.One2Many('stock.shipment.in', None,
-            'Shipments'), 'get_shipments')
+            'Shipments'), 'get_shipments', searcher='search_shipments')
     shipment_returns = fields.Function(
         fields.One2Many('stock.shipment.in.return', None, 'Shipment Returns'),
-        'get_shipment_returns')
+        'get_shipment_returns', searcher='search_shipment_returns')
     moves = fields.One2Many('stock.move', 'purchase', 'Moves', readonly=True)
 
     @classmethod
@@ -540,21 +571,13 @@ class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
                     'invoice_state': state,
                     })
 
-    def get_shipments_returns(model_name):
-        "Computes the returns or shipments"
-        def method(self, name):
-            Model = Pool().get(model_name)
-            shipments = set()
-            for line in self.lines:
-                for move in line.moves:
-                    if isinstance(move.shipment, Model):
-                        shipments.add(move.shipment.id)
-            return list(shipments)
-        return method
-
     get_shipments = get_shipments_returns('stock.shipment.in')
     get_shipment_returns = get_shipments_returns('stock.shipment.in.return')
 
+    search_shipments = search_shipments_returns('stock.shipment.in')
+    search_shipment_returns = search_shipments_returns(
+        'stock.shipment.in.return')
+
     def get_shipment_state(self):
         '''
         Return the shipment state for the purchase.
diff --git a/stock.xml b/stock.xml
index 488f8073b9..d57e00770a 100644
--- a/stock.xml
+++ b/stock.xml
@@ -33,5 +33,58 @@ this repository contains the full copyright notices and license terms. -->
             <field name="perm_create" eval="False"/>
             <field name="perm_delete" eval="False"/>
         </record>
+
+        <record model="ir.action.act_window" id="act_purchase_shipments_relate">
+            <field name="name">Purchases</field>
+            <field name="res_model">purchase.purchase</field>
+            <field name="domain"
+                eval="[If(Eval('active_ids', []) == [Eval('active_id')], ('shipments', '=', Eval('active_id')), ('shipments', 'in', Eval('active_ids')))]"
+                pyson="1"/>
+        </record>
+        <record model="ir.action.act_window.view"
+            id="act_purchase_shipments_relate_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="purchase_view_tree"/>
+            <field name="act_window" ref="act_purchase_shipments_relate"/>
+        </record>
+        <record model="ir.action.act_window.view"
+            id="act_purchase_shipments_relate_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="purchase_view_form"/>
+            <field name="act_window" ref="act_purchase_shipments_relate"/>
+        </record>
+        <record model="ir.action.keyword"
+            id="act_purchase_shipments_relate_keyword">
+            <field name="keyword">form_relate</field>
+            <field name="model">stock.shipment.in,-1</field>
+            <field name="action" ref="act_purchase_shipments_relate"/>
+        </record>
+
+        <record model="ir.action.act_window" id="act_purchase_shipment_returns_relate">
+            <field name="name">Purchases</field>
+            <field name="res_model">purchase.purchase</field>
+            <field name="domain"
+                eval="[If(Eval('active_ids', []) == [Eval('active_id')], ('shipment_returns', '=', Eval('active_id')), ('shipment_returns', 'in', Eval('active_ids')))]"
+                pyson="1"/>
+        </record>
+        <record model="ir.action.act_window.view"
+            id="act_purchase_shipment_returns_relate_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="purchase_view_tree"/>
+            <field name="act_window" ref="act_purchase_shipment_returns_relate"/>
+        </record>
+        <record model="ir.action.act_window.view"
+            id="act_purchase_shipment_returns_relate_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="purchase_view_form"/>
+            <field name="act_window" ref="act_purchase_shipment_returns_relate"/>
+        </record>
+        <record model="ir.action.keyword"
+            id="act_purchase_shipment_returns_relate_keyword">
+            <field name="keyword">form_relate</field>
+            <field name="model">stock.shipment.in.return,-1</field>
+            <field name="action" ref="act_purchase_shipment_returns_relate"/>
+        </record>
+
     </data>
 </tryton>