To make sure that the results contain a particular word or words please use a + character, example:
this will only return results that contain both words.
Note: the + character is optional. If omitted it is assumed that the word must be included.
To exclude a particular word from the results please use a – character, example:
this will return results that contain the word balloon but not the word sky.
Exact phrase or group of words
To search for an exact phrase or group of words, use single quotes, example
‘back to the drawing board’
this will return results that contain the phrase above.