Typing in any of these operators will get you a more refined search.

  • To find messages matching keyword A or keyword B, type "OR" in all caps, for example: from:amy OR from:david.
  • Find specific types of files with "filename:" for example: filename:jpg.
  • Search messages within a certain period with "after:" and "before:" for example: after:2014/04/30 before:2014/05/06.

But wait, there's more!  For All of the possible search operators supported by Gmail, click HERE.