Perhaps you should try some spelling variations:
literatura enspana » literatura espana, literatura hispana, literatuta espana
literatura en » literatura de, literatura espana
enspana en » espana en, espana el, espana e
en islam » el islam, un islam, en ilam
e islam » el islam, del islam
e islas » el islam

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