When using search engines:
1. Choose your search terms carefully.
Be precise about what you are looking for. You should use phrases and not full sentences.
2. Add more words to narrow a search.
Use Boolean searches to narrow your topic with quotation marks. There's a big difference between the search term “gopher” and “habitats of gophers in North America.”
3. Use synonyms.
If you can’t find what you're looking for, try keywords that mean the same thing or are related.
5. Add a minus sign.
Adding a minus sign immediately before any word, with no space in between, indicates that you don't want that word to appear in your search results. For example, "Saturn -cars" will give you information about the planet, not the automobile.