I believe that the whole problem comes from their AI. Since most of people on planet are searching for things that are highly non-technical, the AI is learned to give them priority over the technical documentation etc. which almost nobody uses. I am also experiencing that the sites that I know are there, are not returned at all (or somewhere on 100th page).
I would really love to see the google search as it was 20 years back. At that time it was far more useful, quite frankly I didn't see any improvement in precision of search results from those times, it only went to the worse.