About advanced searches
Advanced searches provide more flexibility than both simple and structured searches. They enable you not only to search for text and metadata with multiple search criteria but also to nest and combine those criteria by using parentheses and Boolean and other operators.
To perform an advanced search, you use the Advanced Query page of the Search Console. On this page, you write your own query (called an advanced query) using a query language. The language you use depends on the active search facility.

You can generate advanced queries from the Structured Search page. To do this, construct the query on the Structured Search page and then click Show as advanced search. The Advanced Search page opens and shows the specified search criteria translated into the applicable query language.