Yeah I always assumed it was just a duplicate of the title due to its nondescript appearance. Changing it to 'search' or something similar would be much better.

"google" might be more specific, since "search" can imply searching locally on HN.

But what if they move to bing!? :)

Yeah "google" may be good since the intent is to get around pay walls. That or some sort of phrase like "search url" or something less awkward that I apparently can't think of.