The document provides tips for effectively searching for information about the Pythagorean theorem using key search terms and keywords. It recommends using search terms like "Pythagoras theorem formula" and "Pythagoras Theorem" as well as just "Pythagoras". It also advises scrolling through the results from different search engines and looking at the titles and summaries of search results to find ones that look most relevant based on containing a formula similar to what is being searched for, such as the Pythagorean formula of √(a2 + b2).