Before RankBrain, Google didn’t have an understanding of synonyms and would return literal interpretations of the term. From Google: “…just before we had Highly developed AI, our units only looked for matching terms. For instance, for those who searched for “pziza” – Until there was a page with that https://seoshop19237.thezenweb.com/the-4-minute-rule-for-google-ranking-test-64460848