Problem with the search

Hello, i have a problem, when I search something on the homepage it redirects me to it self, but when I search again it works fine!. And another thing, when we click on the link on a seacrh result, it send me to the drupal app and doesn't redirect me to the facebook, thanks for the help.

Links:
http://apps.facebook.com/portaltecnologia/
http://190.144.47.203/desarrollos/tecnologia/

pda: Sorry about my english! :)