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(table reproduced below)

   +------------------------------------------------------------------------+
   | Query                       | Notes                                    |
   |-----------------------------+------------------------------------------|
   | the donkey                  | Stop word "the" removed                  |
   |-----------------------------+------------------------------------------|
   | the blue donkey             | The two words can appear in any order,   |
   |                             | with any number of words between         |
   |-----------------------------+------------------------------------------|
   | "blue donkey"               | The words must appear together in the    |
   |                             | given order                              |
   |-----------------------------+------------------------------------------|
   | "the donkey"                | Stop words are removed within quotes     |
   |-----------------------------+------------------------------------------|
   | donkey or mule              | Either word will match                   |
   |-----------------------------+------------------------------------------|
   | "blue donkey" or "red mule" | One of the two phrases must match        |
   |-----------------------------+------------------------------------------|
   | blue donkey or mule         | Either "blue" and "donkey" match, or     |
   |                             | just "mule"                              |
   |-----------------------------+------------------------------------------|
   | -mule                       | "mule" must not match                    |
   |-----------------------------+------------------------------------------|
   | donkey -mule                | "donkey" matches and "mule" does not     |
   |-----------------------------+------------------------------------------|
   | "blue donkey" -"red mule"   | "blue donkey" matches and "red mule"     |
   |                             | does not                                 |
   +------------------------------------------------------------------------+