This section can be clarified
https://www.mongodb.com/docs/manual/core/link-text-indexes/#search-for-an-exact-I I think we should not use word "phrase" here, as it assumes some logic around multi word search string, .

When passing search string in quotes it will match the substring, including delimiter characters as they were specified, and it can match partial words. $caseSensitive and $diacriticSensitive options are respected. But there will be no handling of tokenization/stemming/stop words that come from $language.

e.g. find({$text:{$search: ‘“COFFEé SHOP”’}})
will match document

(here search was not case sensitive and not diacritic sensitive)