Why are some basic + listings showing up in search results, and PL aren't under key words?

Very confused by what is showing up in search results (or not). I just started listing premium names and I have one new name for example, where the logo shows up and sometimes not at all. And when I go to put in one of the root words for a 5 letter name, example: kick(s) and it doesn’t show up in the search results, though what WILL show up are what appear to be basic listing+ names, including key words with nothing in common like ‘hun’?