I need help with modifying the searchbox in mod_k2_tools.

Default search algoritm for this module is a "OR" search. I need "AND" instead.

So, if I search for "hospital chicago" I need to get searchresults for hospitals in Chicago. Now it displays all hospitals (in all cities) and also everything from Chicago (not only hospitals).

I have looked around in the files for this module but I cannot find where this is set? Any ideas anyone?

The search query is generated at components/com_k2/models/itemlist.php in function prepareSearch .
Did you try to enclose your search term in " " ? ( exactly like you post it "hospital chicago" )