I was searching for magic items a rogue could use. I selected multiple tags for weapon and armor types. It generated no results. It's as if it were looking for items that were both: daggers and leather armor. I know this mechanism works on other filter fields (like rarity and attunement), but in this case I believe it isn't working as it should. You should check that feature and consider (if you haven't) a filter for character usability, giving the option to look for items that can be used for distinct classes (rogue, in this case) or races.