For some reason, all webassist email is going into junk folder. Not sure why, I've added the domain to safe-senders.
Anyway, I did mean in the Search Form, yes. And you want me to paste the above code, above line 1 on the results.php page? Here is line 1:
<?php require_once('../Connections/connConejo.php'); ?>
And this new code will allow a person to enter in the search box: March 28 instead of 2015-03-28?