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