I made some adwords campaigns for very niche subjects, but google won't show my ads, instead they show the broader search term ads. For example I bid on "buy baseball gloves". But Adwords tells me my bid is below the minimum to be shown, even though nobody is bidding on "baseball gloves". When I search for "buy baseball glove", the ads that show up are all for "baseball", even though my ads would be more related. Does Google hate niche bids?