Hi there,
As I’ve told you earlier you need to set the search page check the screenshots given below with steps:
- First of all you need to create a page & set the page template to “Ad Search”. Check the screenshot: http://prntscr.com/nd00sf
- Secondly you need to set the created page in theme option. Check the screenshot: http://prntscr.com/nd01ez
By this the search will work for sure. Hopefully this will help you understand how the search works