Over-filtered searches are the standard way to waste an afternoon. You add seven criteria, get eleven results, and then remove them one at a time to find out which one was too strict.
Company search now does that for you. When results come back thin, it reports which filter is the binding constraint and how many more companies you would reach by relaxing it — so you can make the trade deliberately instead of by trial and error.
Filter labels were rewritten in the same pass, so it is clear what each one actually matches before you apply it.