MongoDB text search - Match exact tokens in a string

I have fallen in a case where I need to do a $text $search in MongoDB by matching exact tokens within a string. I thought I can resolve this by creating a text index without a default language and perform the query by wrapping each token with \"token\", as written in the documentation. So I created my index in this way:

db.collection.createIndex({"denom": "text"}, {"default_language": "none"})

And the query I have to perform is

db.collection.find( {"$text": {"$search": "\"consorzio\" \"la\""}}, {"denom": 1} )

The result I was expecting are all documents that contains exactly the tokens "consorzio" and "la", but instead this query match documents whose tokens contain the string "la" and "consorzio" inside each token

For example, the query above returns the following denom's values in which I expect:

CONSORZIO LA* CASCINA OK
LA RADA CONSORZIO OK
GESCO CONSORZIO AGRICOLA WRONG

Can someone address me in this problem please? I hope the problem is clear.

Thank you very much in advance.

Solution

Mongodb has a reported bug for this issue. Exact maching is not working.

You can take a look at maching score:

db.docs.find({$text: {$search: "\"consorzio\" \"la\""}}, 
             {score: { $meta: "textScore" }, "_id": 0})

{ "t" : "CONSORZIO LA* CASCINA OK", "score" : 1.25 } 
{ "t" : "LA RADA CONSORZIO OK", "score" : 1.25 }
{ "t" : "GESCO CONSORZIO AGRICOLA WRONG", "score" : 0.625 }

A solution should be to take into consideration the highest scores ...