1) The document discusses various advanced search strategies that can be used within Google including using quotation marks to search for an exact phrase, limiting searches to words in the title using intitle or allintitle, excluding commercial sites using -com, limiting to educational sites using .edu, and searching within a specific site.
2) It provides examples of searches using these strategies such as searching for "halifax explosion of 1917" with and without quotes or searching "storm warning" and "storm warning".edu.
3) The document also discusses searching for specific file types like .pdf, .ppt, or .doc by adding the file extension like fractions.ppt.