Perhaps you should try some spelling variations:
"african studies series" » "american studies series", "african studies services", "african studies theories", "african studies studies"
"African studies species" » "African studies special", "African studies studies", "African studies space"
african species » africa species, american species, african special
"African species species" » "African species specific"

Try widening your search to All Fields.

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: (("african studies series") OR ((("African studies species") OR ("African species species")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"african studies series\") or (((\"African studies species\") OR (\"African species species\"))))".
• Removing quotes may allow a broader search: (( african studies series ) or ((( African studies species ) OR ( African species species )))).
• Adding a wildcard symbol may retrieve word variants: (("african studies series") or ((("African studies species") OR ("African species species"))))*.