Perhaps you should try some spelling variations:
"african american periodicals cited." » "african america periodicals cited." (Expand Search), "african american periodical cited." (Expand Search), "african africa periodicals cited." (Expand Search), "african american periodicals etc." (Expand Search), "african american periodicals index." (Expand Search)
"african americans medieval life." » "african medicine medieval life." (Expand Search), "african american media life." (Expand Search)
"african americans african case." » "african america africa case." (Expand Search), "african americans african coast." (Expand Search), "african americans african based." (Expand Search), "african americans african fast." (Expand Search)
"african americans magical life." » "african americans mexico life." (Expand Search), "african americans marital life." (Expand Search), "african americans medical life." (Expand Search), "african americans magical rites." (Expand Search)
"african americans medical codex." » "african american media codex." (Expand Search), "african americans mexico codex." (Expand Search), "african moroccans medical codex." (Expand Search), "african americans medical context." (Expand Search), "african americans medical care." (Expand Search), "african americans medical copte." (Expand Search)
"african americans medical content." » "african american media content." (Expand Search), "african americans mexico content." (Expand Search), "african moroccans medical content." (Expand Search), "african americans medical context." (Expand Search)
"african africans africa case." » "african africa africa case." (Expand Search), "african african africa case." (Expand Search), "african africans africa cases." (Expand Search), "african africans africa east." (Expand Search), "african africans africa has." (Expand Search)

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 americans african case.") OR ("african africans africa case."))) OR ("african american periodicals cited."))) OR ((((("african americans magical life.") OR ("african americans medieval life."))) OR ((("african americans medical codex.") OR ("african americans medical content."))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"african americans african case.\") OR (\"african africans africa case.\"))) or (\"african american periodicals cited.\"))) or (((((\"african americans magical life.\") or (\"african americans medieval life.\"))) or (((\"african americans medical codex.\") or (\"african americans medical content.\"))))))~".
• Removing quotes may allow a broader search: (((((( african americans african case. ) OR ( african africans africa case. ))) or ( african american periodicals cited. ))) or ((((( african americans magical life. ) or ( african americans medieval life. ))) or ((( african americans medical codex. ) or ( african americans medical content. ))))))~.
• Adding a wildcard symbol may retrieve word variants: (((((("african americans african case.") OR ("african africans africa case."))) or ("african american periodicals cited."))) or ((((("african americans magical life.") or ("african americans medieval life."))) or ((("african americans medical codex.") or ("african americans medical content."))))))*.