Perhaps you should try some spelling variations:
"literatura arabe e isla." » "literatura breve e isla.", "literatura de e isla.", "literatura e e isla.", "literatura arabes e isla.", "literatura arabe de isla.", "literatura arabe en isla.", "literatura arabe e islas.", "literatura arabe e islam."
"literatura del el islam." » "literatura de el islam.", "literatura del eln islam.", "literatura del eo islam."
"literatura en e isaac." » "literatura de e isaac.", "literatura espana e isaac.", "literatura en de isaac.", "literatura en en isaac.", "literatura en _ isaac.", "literatura en el isaac."

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 en e isaac.") or ("literatura del el islam."))) or ("literatura arabe e isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura en e isaac.") OR ("literatura del el islam."))) OR ("literatura arabe e isla.")).
• Removing quotes may allow a broader search: (((( literatura en e isaac. ) or ( literatura del el islam. ))) or ( literatura arabe e isla. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura en e isaac.") or ("literatura del el islam."))) or ("literatura arabe e isla."))*.