So I reached the same conclusion Jim did on this lack of search and stopped my previous crusade. It would be nice to have the resident search but this forum is run at no charge and is a nice platform available to us.
Regarding the google search it does seem to work ok with an inconvenience factor I noted.
I may be wrong here but when you find your subject through the search you click on it and it opens the Jetfires site to the subject, great!
But you cannot view pictures cause you’re not logged in.
When you log in it takes you to the current main page and you loose your searches subject.
So you need to note the date of the post you found via your google search and page back once you log in to that date in the forum. I did that with a post on Self adjusting brakes I started back in 2015 and there it was with pics. A little convoluted but it works.