diff --git a/web_advanced_search/i18n/es.po b/web_advanced_search/i18n/es.po
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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#   * web_advanced_search_x2x
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 8.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2015-05-27 07:19+0000\n"
+"PO-Revision-Date: 2015-05-27 07:19+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: web_advanced_search_x2x
+#. openerp-web
+#: code:addons/web_advanced_search_x2x/static/src/js/web_advanced_search_x2x.js:295
+#: code:addons/web_advanced_search_x2x/static/src/js/web_advanced_search_x2x.js:322
+#, python-format
+msgid "Advanced"
+msgstr "Avanzado"
+
+#. module: web_advanced_search_x2x
+#. openerp-web
+#: code:addons/web_advanced_search_x2x/static/src/xml/web_advanced_search_x2x.xml:8
+#, python-format
+msgid "Search"
+msgstr "Buscar"
+
+#. module: web_advanced_search_x2x
+#. openerp-web
+#: code:addons/web_advanced_search_x2x/static/src/js/web_advanced_search_x2x.js:221
+#, python-format
+msgid "Use criteria"
+msgstr "Usar criterio"
+
+#. module: web_advanced_search_x2x
+#. openerp-web
+#: code:addons/web_advanced_search_x2x/static/src/js/web_advanced_search_x2x.js:159
+#, python-format
+msgid "invalid search domain"
+msgstr "dominio de búsqueda inválido"
+
+#. module: web_advanced_search_x2x
+#. openerp-web
+#: code:addons/web_advanced_search_x2x/static/src/js/web_advanced_search_x2x.js:47
+#, python-format
+msgid "is in selection"
+msgstr "está en la selección"
+