Hyphen in text search doesn't behave correctly based on usual implementation

It is common, that hyphen negates the following word in text search.

But it is standard that the hyphen must be directly adjacent to the word. E.g "MongoDB -documentation". See Google.

Contrary, MongoDB's implementation negates the word even if the hyphen is NOT adjacent "MongoDB - documentation". See Google again.

This is very poor in common user scenarios. People use copy paste frequently, when searching for text and text frequently contains hyphens to separate words.

"MongoDB - Wikipedia, the free encyclopedia" would not find this article on wikipedia, should Google use MongoDB.