Sorry if i'm not reading this clearly, but is the theme:
Worms, OR Holes, OR Wormholes?
or is it Worms, AND Holes, AND Wormholes?
Neither; The theme is "Worms, Holes and Wormholes" and as all themes ever, is very much open to interpretation. The judges will be the ones deciding if your interpretation is correct (or partially correct), so I have no I idea what they feel about it. Your best bet is to ask on discord. If you read the advanced rules on the gist page, it says the theme is worth up to 5 points out of a theoretical maximum of 25 points, so it's not like there's a binary "correct" and "incorrect" interpretation, it's more like a spectrum in respect to the theme. But since all elements in the theme are joined by an "and", I would assume, as per how english works, that it means worms and holes and wormholes is the kosher interpretation.