Example:

"contact log" - including the quotation marks, returns 14 results of the phrase 'contact log'.

contact - no punctuation or quotations, returns 89 results which include contact, contacts, contacting, contacting log, contact summary, contact type, etc.

contact log - no punctuation or quotations, returns 150+ results which include contact, log, contact log, contact summary, contact type, logging, log, etc.