Store search results limitations?

Is there documentation regarding the current limitations of the Snap Store search functionality? (And what, if any, published snap settings may affect it?)

  1. The following yields zero results, despite there being a Snap with this exact Title:

  2. The following yields the expected result (but, of course, “warzone2100” is the registered Snap name, so I would expect this to work at a minimum)

Does the Snap Store search functionality only search the registered Snap name? Is there some other way to add “keywords”?

Descriptions are searched, for example Pumpkin+Studios. Just checked Titles, Summaries and Usernames are also searched. I remember sometimes search not working for me when it should so I guess it’s somewhat rare.