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