Because you need to limit your search to marginalized populations affected by an issue of concern, e.g.
Your first database search might look like
Environmental Justice OR Environmental Health
After examining your search results, you might change your search to
Racism OR Race Discrimination
Hispanic OR Mexican (OR...)
firstname.lastname@example.org | 503.943.7111 or 800.841.8261 | 5000 N. Willamette Blvd., Portland, OR 97203-5798
© 2020 University of Portland, All Rights Reserved | Icons made by Freepik from www.flaticon.com