Searching only 1 field

Hi, thank you for your plugin.
I put this code into my widget on https://www.cechmajstrov.sk/:
[searchandfilter fields=”search,listing_category,mesto, ” all_items_labels=”,V?etky kategórie” types=”,select,select” hierarchical=”,1″ search_placeholder=”vlo?te h?adany text” headings=”,cez Kategórie, Okres,Post Format,” submit_label=”Filtruj”]

I can search by Search,Listing_category,Mesto BUT I can not search by a combination of them.
What did I setup wrongly?
Monika

https://www.ads-software.com/plugins/search-filter/