Perhaps you should try some spelling variations:
literatura alemana » literatura espana, literatura castellana, literatura colombiana
literatura d » literatura de, literatura e, literatura a
alemana el » alemana del, alemana en, aleman el
un islam » _ islam
al islam » del islam
e islam » e islas, del islam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( literatura d ((((un islam) OR (e islam))) or (al islam)). ) or ( literatura alemana el islam. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( literatura d ((((un islam) OR (e islam))) OR (al islam)). ) OR ( literatura alemana el islam. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( literatura d ((((un islam) OR (e islam))) or (al islam)). ) or ( literatura alemana el islam. ))".
• Adding a wildcard symbol may retrieve word variants: (( literatura d ((((un islam) OR (e islam))) or (al islam)). ) or ( literatura alemana el islam. ))*.