Perhaps you should try some spelling variations:
"african literature theory" » "american literature theory", "asian literature theory", "christian literature theory", "african literary theory", "african literature history", "african literature through"
"german literature theory" » "german literary theory", "german literature history", "german literature through", "american literature theory"

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

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