Perhaps you should try some spelling variations:
childrens studies » children's studies, childrens stories, children's stories
african political » american political, african politics, africa politics
chicano studies » chickens studies, china studies, africana studies
piano studies » vitro studies, vivo studies

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((chicano studies) OR (piano studies))) OR (childrens studies)) in african political*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((chicano studies) OR (piano studies))) or (childrens studies)) in african political*".