the fact that you don't summon the official documentation by google search is exactly why the indexed questions are beneficial to you: being a glorified pattern matcher, google would spit out the docs only if provided by the documenatation precise wording itself, which if you knew, you wouldn't needed to find

besides, google is a knowledge base index, if you want to search a documentarion website you can both both inform google via site: or use the docs own search system which most have as of today