+	signifies AND operation
|	signifies OR operation
-	negates a single token
""	wraps a number of tokens to signify a phrase for searching
*	at the end of a term signifies a prefix query
( and )	signify precedence
~N	after a word signifies edit distance (fuzziness)
~N	after a phrase signifies slop amount

For example: "fried eggs" +(eggplant | potato) -frittata will match the phrase fried eggs and either eggplant or potato, but will ignore results containing frittata.

When neither + or | is specified, the default operator is + (and).

When the Fuzzy option is checked, partial matches are also returned.

For more information, see Elasticsearch documentation