Perhaps you should try some spelling variations:
literatura espana » literatura espanola, literatura mexicana
literatura arabe » literatura breve, literatura de, literatura e
arabe un » arabes un, arabe en, arabes en
un islam » el islam, e islam, al islam
de isla » de isaac
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 arabe un islam.\") or (\"literatura espana ((de isla) OR (e islas)).\"))~".
• Removing quotes may allow a broader search: (( literatura arabe un islam. ) or ( literatura espana ((de isla) or (e islas)). ))~.