Perhaps you should try some spelling variations:
"literatura arabes el islam." » "literatura arabe el islam.", "literatura arte el islam.", "literature arab el islam.", "literatura arabes del islam.", "literatura arabes e islam.", "literatura arabes en islam.", "literatura arabes el islas."
"literatura del de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isaac.", "literatura del dean isla."
"literatura e e isaac." » "literatura de e isaac.", "literatura en e isaac.", "literatura e de isaac.", "literatura e en isaac.", "literatura e _ isaac.", "literatura el e 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 e e isaac.") or ("literatura del de isla."))) or ("literatura arabes el islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e e isaac.") OR ("literatura del de isla."))) OR ("literatura arabes el islam.")).
• Removing quotes may allow a broader search: (((( literatura e e isaac. ) or ( literatura del de isla. ))) or ( literatura arabes el islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura e e isaac.") or ("literatura del de isla."))) or ("literatura arabes el islam."))*.