Hi!
You haven’t selected any taxonomies to return (in your case project categories). You can enable search in terms on the General Options -> Sources 2 panel, and select the taxonomy you would like to search as well.
For the recruitment I can’t see any published posts, only private ones. Private state is not a default in wordpress, thus the plugin does not recognize it. Do you also want to search in private posts as well?
Best,Ernest Marcinko
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