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 americans african case." » "african africans africa case." (Expand Search), "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 medical copte." » "african moroccans medical copte." (Expand Search), "african americans medical context." (Expand Search), "african americans medical care." (Expand Search), "african americans medical codex." (Expand Search)
"african americans medical content." » "african moroccans medical content." (Expand Search), "african americans medical context." (Expand Search)
"african american media copte." » "african american indian copte." (Expand Search), "african american music copte." (Expand Search), "african american eden copte." (Expand Search)
"african americans magical life." » "african americans marital life." (Expand Search), "african americans medical life." (Expand Search), "african americans magical rites." (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 american periodicals cited."))) OR ((((("african americans magical life.") OR ("african americans medieval life."))) OR ((((("african americans medical copte.") OR ("african american media copte."))) OR ("african americans medical content."))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"african americans african case.\") or (\"african american periodicals cited.\"))) or (((((\"african americans magical life.\") or (\"african americans medieval life.\"))) or (((((\"african americans medical copte.\") OR (\"african american media copte.\"))) or (\"african americans medical content.\"))))))~".
• Removing quotes may allow a broader search: (((( african americans african case. ) or ( african american periodicals cited. ))) or ((((( african americans magical life. ) or ( african americans medieval life. ))) or ((((( african americans medical copte. ) OR ( african american media copte. ))) or ( african americans medical content. ))))))~.
• Adding a wildcard symbol may retrieve word variants: (((("african americans african case.") or ("african american periodicals cited."))) or ((((("african americans magical life.") or ("african americans medieval life."))) or ((((("african americans medical copte.") OR ("african american media copte."))) or ("african americans medical content."))))))*.