Fuzzy Like This query not returning what I look for

I'm using fuzzy like this query but I'm not getting the desired results:

for example, With this query:

"query": {
            "fuzzy_like_this" : {
                "fields" : ["entities.text", "title"],
                "like_text" : "bill clinton",
                "max_query_terms" : 12,
                "min_similarity": 0.65
            }
 }

I get this results(sorted by highest score):

"Watch Bill Nye, Dressed Like A Robot"
"Obama in Shutdown Politics Channels Bill Clinton..."
"Q&A: Carcass..." (there's an entity Bill Steer)
"Clinton: Obama "Right" no..."

I'd like the results to be more exclusive: if I look for "bill clinton" and
put "bill cinton" in the search box, I'd like to get only the results who
mentions bill clinton or something really similar. I tried changing
"min_similarity" to 0.9 but I keep getting the same results.

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