Not exactly what you mean but perhaps enabling Typo tolerant (fuzzysearching) search could help you enough:
https://docs.kentico.com/k10/configuring-kentico/setting-up-search-on-your-website/configuring-search-assistance-features#Configuringsearchassistancefeatures-Enablingtypo-tolerantsearch(fuzzysearching)
or look into the synonym search settings (same link as above)
otherwise perhaps add those different spelling to hidden fields or meta fields on that page?