Say you are trying to rank for a particular term, but maybe the term doesn't make sense without another word in it. So for example "driving car without license" - lets assume that term has a lot of searches and is low competition. It doesn't really make sense, so an article would read better if that keyword/phrase was written like this: "driving a car without a license". I am thinking that Google probably understands that, so is it wise to optimize an article on that topic for both terms, or should it still be optimized specifically for the exact term even if it doesn't make total sense.?