This document provides a summary of Google advanced search operators that can be used to refine search queries. It lists operators for restricting searches by file type, domain, date range, definitions, phone numbers, reviews, stock prices, weather, cached pages, and related sites. It also describes operators for requiring terms to appear in specific fields like titles, URLs, or text. The sheet serves as a quick reference for examples of advanced operators that can help users find specific types of information on Google.