Query String Query Syntax

Query String queries let you express more complex queries with a special syntax. You can reduce the properties you need to specify for a Search query with Query String syntax. If you do not add any additional Query String syntax to a query, the Search Service interprets the query as a match query.

^ : If you use multiple clauses in a query, you can use the ^ operator to assign the relative importance to a clause.
>, >=, < and ⇐ : You can run two types of range queries with the later than (>), later than or equal to (>=), earlier than (<), and earlier than or equal to (⇐) operators:
\ : Use a backslash character (\) to escape characters in a Query String query.
{field-name} : Set the field in a document where the Search Service should search for your query by adding a field name and a colon to the start of a search term. Use dot notation for the field name. For example, parentField.childField.
+ and - : Use the + and - operators before a clause in a Query String query to run a boolean query.The + operator adds the clause to the MUST list of a boolean query. The - operator adds the clause to the MUST_NOT list of a boolean query.