Perhaps you should try some spelling variations:
childrens studies » children's studies, childrens stories, childhood studies
african political » american political, african politics, africa politics
chicano studies » chickens studies, china studies, piano 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 (((childrens studies) OR (children's stories)))) in african political*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((chicano studies) or (((childrens studies) OR (children's stories)))) in african political*".