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