They are making these specific jobs tough to find because they are for a PERM test and don't want to get applicants. This video is old, but the same thing is happening today. https://www.youtube.com/watch?v=TCbFEgFajGU

I live in a remote, low education, low income, low population area and they frequently take out classified ads specifically here.

I haven't bothered to ever apply because to me it seemed obvious what is going on.