Before RankBrain, Google didn’t have an understanding of synonyms and would return literal interpretations of the word. From Google: “…in advance of we had State-of-the-art AI, our devices just searched for matching words. One example is, when you searched for “pziza” – unless there was a page with that https://jasper19q41.birderswiki.com/642156/7_easy_facts_about_google_ranking_website_described