Ageism
Classism
Colorism
Gender Identity
Sexism
Racism
Sizeism
Accentism
Religion
Break Down Your Topic into Concepts
Databases have difficulty searching for sentences and plain language text. Search by using the most important terms in your topic. DO NOT ask "What advertisements are sexist?" That will confuse the poor database. Pick out your key words and start with a broad topic.
Start with what HAS TO BE THERE:
You can then narrow down topics within those results, if necessary.