Perhaps you should try some spelling variations:
literatura espana » literatura espanola, literatura mexicana
literatura e » literatura de, literatura en, literatura del
espana el » espana en
un islam » el islam, al islam, _ islam
el islas » el islam, e islas, del islam
e islam » el islam, e islas, del islam

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: "\"((\\"literatura e ((un islam) OR (e islam)).\\") or (\\"literatura espana el islas.\\"))\"".
• Removing quotes may allow a broader search: (( literatura e ((un islam) OR (e islam)). ) or ( literatura espana el islas. )).