More than one search criteria

I’m working on a WordPress website that has user database with important user information, so this user information need to searched thoroughly.

As shown in this picture:
https://i.stack.imgur.com/vFeWm.png

I have a custom registration fields, and I’ve found your plugin so that I’m able search for country (like: syria) and all the syria results will be listed.
But I need to make it work on a multiple criteria (like: Syria unemployed) it would need all the Syrian users who set “unemployed” as their occupation. so is this possible? what edits I need to make to the plugin to make it work?

https://www.ads-software.com/plugins/improved-user-search-in-backend/