Perhaps you should try some spelling variations:
"literatura arabe et islam." » "literatura breve et islam.", "literatura de et islam.", "literatura e et islam.", "literatura arabe en islam.", "literatura arabe e islam.", "literatura arabe el islam.", "literatura arabe del islam."
"literatura en de islam." » "literatura de de islam.", "literatura espana de islam.", "literatura en del islam.", "literatura en e islam.", "literatura en de ilam.", "literatura en de isaacm."
"literatura do de isla." » "literatura de de isla.", "literatura d de isla.", "literatura del de isla.", "literatura do de isaac.", "literatura lo de isla.", "literatura 1o de isla."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura arabe et islam.") or ((("literatura en de islam.") or ("literatura do de isla."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura arabe et islam.") OR ((("literatura en de islam.") OR ("literatura do de isla.")))).
• Removing quotes may allow a broader search: (( literatura arabe et islam. ) or ((( literatura en de islam. ) or ( literatura do de isla. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura arabe et islam.") or ((("literatura en de islam.") or ("literatura do de isla."))))*.