Say that i want to search for every card that has 'legendary' and 'angel' in the typeline, how do i do that? I can't seem to search without having to enter the full type, but not all legendary angels have the same exact type line.

Same for rules text. Say i want to search for all cards that give lifelink and/or trample to other creatures, how do i enter that into the search field?

Deckbox's search capabilities are fairly basic. For more robust searches, I'd use Scryfall, which not only supports normal queries like multiple types or color identities, but also many advanced features, everything from RegExp to nested OR and AND logic.

To be clear, I have no affiliation with Scryfall. I just love it as a tool! If Deckbox could somehow incorporate Scryfall's search functionality, that would be the birth of perfection. LoL. But until such a time, I use Scryfall to narrow down a list of cards I'm interested in, and then I'll check my Deckbox inventory to see if I own them.