That works for the case you described. It will still ignore typos, dialects, or in my case a completely different language from the same language group. It will happily highlight different words that it deems to be equal to something I put in quotes.
It's infuriating when I search in Ukrainian on YouTube and all the top results are Russian. Using words dissimilar with Russian helps, but that's not always an option. More and more today, I'm fighting with services that want to show me engaging, trending content. It's as if they're holding the real gems hostage, only giving them up grudgingly when I fail to succumb to cat videos or [insert trending content].