It's important that you search using KEYWORDS & that you don't type in your entire research question.
Sample hypothesis: Teenagers from poor homes are more likely to go to jail than other teenagers.
Keywords: Teenagers, poverty, incarceration
Step 1: Type the keyword(s) closest to your topic in the top search box. Note: you do not need to change the box that says "Select a Field".
Step 2: Add an additional keyword to the next box to narrow down your results--the "AND" means that your search results will have to include both words. You can use as few or as many boxes as you need.
Step 3: To get more results, type synonyms or similar keywords within the same line, separated by an "OR".
The "OR" means that your search results will have at least one of the words listed on that same line.