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