diff --git a/odoo/addons/base/models/res_users.py b/odoo/addons/base/models/res_users.py
index 4b3cf333cbc..a51bdcc8726 100644
--- a/odoo/addons/base/models/res_users.py
+++ b/odoo/addons/base/models/res_users.py
@@ -162,11 +162,7 @@ class Groups(models.Model):
     def _search_full_name(self, operator, operand):
         lst = True
         if isinstance(operand, bool):
-            domains = [[('name', operator, operand)], [('category_id.name', operator, operand)]]
-            if operator in expression.NEGATIVE_TERM_OPERATORS == (not operand):
-                return expression.AND(domains)
-            else:
-                return expression.OR(domains)
+            return [[('name', operator, operand)]]
         if isinstance(operand, str):
             lst = False
             operand = [operand]
@@ -176,7 +172,9 @@ class Groups(models.Model):
             group_name = values.pop().strip()
             category_name = values and '/'.join(values).strip() or group_name
             group_domain = [('name', operator, lst and [group_name] or group_name)]
-            category_domain = [('category_id.name', operator, lst and [category_name] or category_name)]
+            category_ids = self.env['ir.module.category'].sudo()._search(
+                [('name', operator, [category_name] if lst else category_name)])
+            category_domain = [('category_id', 'in', category_ids)]
             if operator in expression.NEGATIVE_TERM_OPERATORS and not values:
                 category_domain = expression.OR([category_domain, [('category_id', '=', False)]])
             if (operator in expression.NEGATIVE_TERM_OPERATORS) == (not values):