Recently: Google refuses to turn up old pages. I was recently searching for a person who used to have a notable web presence before passing away about a decade ago. I had to dig to find a few links, through DDG and Yandex.
Google and Bing (so DuckDuckGo as well) seem to like searching for synonyms of search terms and returning the most popular results, thinking popular means relevant. I remember looking for something where I remembered the exact terms and not getting anywhere with them, but on Yandex it was the first hit.