diff --git a/addons/web/static/src/js/search.js b/addons/web/static/src/js/search.js
index 6e2f3f8397f..9fc268ad04d 100644
--- a/addons/web/static/src/js/search.js
+++ b/addons/web/static/src/js/search.js
@@ -1477,7 +1477,7 @@ instance.web.search.SelectionField = instance.web.search.Field.extend(/** @lends
         var results = _(this.attrs.selection).chain()
             .filter(function (sel) {
                 var value = sel[0], label = sel[1];
-                if (!value) { return false; }
+                if (value === undefined || !label) { return false; }
                 return label.toLowerCase().indexOf(needle.toLowerCase()) !== -1;
             })
             .map(function (sel) {
diff --git a/openerp/addons/base/res/res_currency.py b/openerp/addons/base/res/res_currency.py
index 1419cc7ccb4..0755e8a16f5 100644
--- a/openerp/addons/base/res/res_currency.py
+++ b/openerp/addons/base/res/res_currency.py
@@ -260,6 +260,25 @@ class res_currency_rate(osv.osv):
     }
     _order = "name desc"
 
+    def name_search(self, cr, user, name, args=None, operator='ilike', context=None, limit=80):
+        if operator in ['=', '!=']:
+            try:
+                date_format = '%Y-%m-%d'
+                if context.get('lang'):
+                    lang_obj = self.pool['res.lang']
+                    lang_ids = lang_obj.search(cr, user, [('code', '=', context['lang'])], context=context)
+                    if lang_ids:
+                        date_format = lang_obj.browse(cr, user, lang_ids[0], context=context).date_format
+                name = time.strftime('%Y-%m-%d', time.strptime(name, date_format))
+            except ValueError:
+                try:
+                    args.append(('rate', operator, float(name)))
+                except ValueError:
+                    return []
+                name = ''
+                operator = 'ilike'
+        return super(res_currency_rate, self).name_search(cr, user, name, args=args, operator=operator, context=context, limit=limit)
+
 res_currency_rate()
 
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