Perhaps you should try some spelling variations:
christian literature » russian literature
african literature » american literature, german literature, empirical literature
asian literature » russian literature, italian literature, latin literature

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 literature) OR (christian literature))) OR (asian literature)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((african literature) OR (christian literature))) or (asian literature))".
• Adding a wildcard symbol may retrieve word variants: ((((african literature) OR (christian literature))) or (asian literature))*.