Search engines like Google allow you to use punctuation marks and other symbols to refine search results. For example, placing quotation marks around a phrase means the search results must include that entire phrase. Placing a dash before a word will return results that do not contain that word. A tilde (~) placer before a word returns results containing a similar word. I have used every combination of keywords and phrases I can think of to find a video I really liked, but I usually get a list of many videos that don’t even contain the words I used in my search.