Unfortunately I can't remember which exact words I tried... What I found hard was that there was always only exactly one solution to each level (I think). It's also not too obvious what your objective is in each of the levels. But those are just minor details and I enjoyed your game despite them.
Edit: I replayed it and the actions that didn't work were mostly with very generic words like "get" and "use".
Considering I use both "get" and "use" in the actual solutions, it was a massive oversight on my part to ignore adding flavour text for them (and checking for more valid solutions). Doh!
I've made a feedback form to get an idea of future versions. There'll be a post-jam version, and I'm thinking of a full version as people seem really happy with the game!
You can fill it out here. Thanks!
https://drive.google.com/open?id=1_GbXNE8Kv9AXIl2H5BjQOHcuy2AS7LDhGrgsBgtslZE
