Perhaps you should try some spelling variations:
"literatura arab_ de isla." » "literatura arabe de isla.", "literature arab de isla.", "literatura para de isla.", "literatura arabes de isla.", "literatura jarabe de isla."
"literatura arab_ e islas." » "literatura arabe e islas.", "literature arab e islas.", "literatura para e islas.", "literatura arabes e islas.", "literatura arabe de islas.", "literatura arab_ el islam."
"literatura e de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del de isaac.", "literatura y de isaac.", "literatura _ de isaac."

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

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