Right before RankBrain, Google didn’t fully grasp synonyms and would return literal interpretations of a phrase. From Google: “…prior to we experienced Superior AI, our systems basically looked for matching terms. For example, if you searched for “pziza” – Except if there was a page with that individual misspelling, https://dominickocqbm.wikilinksnews.com/5235155/google_ranking_test_things_to_know_before_you_get_this