Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura en de isaac.", "literatura del de isaac.", "literatura e de isaac."
"literatura el de isaacm." » "literatura del de isaacm.", "literatura en de isaacm.", "literatura e de isaacm.", "literatura el de islam.", "literatura el e isaac."
"literatura de e isla." » "literatura de e islas.", "literatura de de isla.", "literatura de e islam.", "literatura de el isla.", "literatura de fe isla.", "literatura de _ isla."

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