What are the names of the columns in your database you want to search? Did you hand code this or use the interface?
It looks hand coded because you have form field names where you should have column names and the value area is blank.
The code should look something like:
$searchWADAss_templates_WADbSearch1->setSearch(array("type"=>"Key", "comparison"=>"=", "join"=>"AND", "and"=>", ", "or"=>" ", "start_encap"=>"\"", "end_encap"=>"\""), array("DBColumnName1", "DBColumnName2"), "s", "".((isset($_GET["ss_keywords"]))?$_GET["ss_keywords"]:"") ."");