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