There are search tricks that will help you narrow down results to get to exactly what you are looking for in a database, catalog, or even a Google search! Many advanced search options on a platform are ways of building in Boolean operators into your search string so that you don't have to remember as much.
Keyword searching will search for keywords anywhere in a result record, such as the title or the description.
Boolean searching uses operators such as AND, OR, and NOT to refine your search results.
These quick videos better explain the differences.
An overview video:
Keyword and Boolean @ TCC Library (2min)
Subject Searching @ the TCC Library (3min)
You can take this tutorial to learn more about successful searching.