Boolean Syntax and Operators
Note that a proximity search can designate that only some keywords must be within a specified distance. Proximity searching can be used with other search syntax and/or controls to allow more articulate search queries. Sometimes query operators like NEAR, NOT NEAR, FOLLOWED BY, NOT FOLLOWED BY, SENTENCE or FAR are used to indicate a proximity-search limit between specified keywords: for example, "brick NEAR house".
Read more about this topic: Proximity Search (text)