That means that your prior assumptions about Google are wrong. Google does a substantial amount of "semantic understanding" before doing a search. It is no longer a keyword matching tool - that stopped being the case a long time ago.

Also, ChatGPT is usually really bad with long prompts when I use it, and is often kind of close when I give it a short prompt. I assume part of this effect is psychological though, where you expect the short prompt to have worse results.