One of the most important aspects of research is finding the right search keyword, term or phrase. Don't keep trying the same one if you're not getting the results you are seeking. Having term options and finding the right phrasing is often the difference between a successful search or a great deal of wasted time and frustration.
TOP 10 KEYWORD SEARCHING TIPS:
For academic research, teachers/professors will discourage or not even permit a Google search, but if you must, at least do a better Google search by trying to stick with .edu, org, and .gov sites...and by putting your sources through the CRAP test (by checking for (C)currency, (R)reliability, (A)authority & (P)purpose/pov). You want to be sure you're looking at a reliable source. Here are some additional tips:
So instead of just typing: superhero costume for dogs (which will pull up everything about dogs as well as all things costume as well as all things superhero), type: "superhero dog costumes"
The - symbol will exclude particular terms from your search. For example, you might want to look up bass in regard to musicians but not fish, so you would put in...
bass -fish
(Note: Unfortunately, this technique works when searching websites, but it does not usually work for searching images.)