When you're beginning a research paper, it can be very helpful to look in encyclopedias for background information. Reading background information about your research topic can help you narrow down your topic. It can also help you learn the vocabulary used to describe your topic. This new vocabulary will help you with your keyword searches.
Helpful sources for background information include:
Google Search Tips
Limit your search by domain type (e.g. .edu, .gov, .org).
Look for associations and NGOs by adding the word “Association” to your searches
Exclude words from your search
Search for an exact match
Search for wildcards or unknown words