Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura de de isaac.", "literatura del de isaac.", "literatura e de isaac."
"literatura en de isaac." » "literatura de de isaac.", "literatura espana de isaac."
"literatura en x islam." » "literatura de x islam.", "literatura espana x islam.", "literatura en e islam.", "literatura en _ islam.", "literatura en el islam.", "literatura en y islam.", "literatura en c islam."

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