Perhaps you should try some spelling variations:
"literatura o de isaac." » "literatura e de isaac.", "literatura _ de isaac.", "literatura con de isaac.", "literatura o den isaac.", "literatura o d_ isaac.", "literatura o dc isaac.", "literatura y de isaac."
"literatura a de isla." » "literatura al de isla.", "literatura e de isla.", "literatura de de isla.", "literatura y de isla.", "literatura _ de isla."
"literatura y e isaac." » "literatura y en isaac.", "literatura y _ isaac.", "literatura y c isaac.", "literatura y el isaac.", "literatura y de isaac."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura y e isaac.") or ((("literatura o de isaac.") or ("literatura a de isla."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura y e isaac.") OR ((("literatura o de isaac.") OR ("literatura a de isla.")))).
• Removing quotes may allow a broader search: (( literatura y e isaac. ) or ((( literatura o de isaac. ) or ( literatura a de isla. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura y e isaac.") or ((("literatura o de isaac.") or ("literatura a de isla."))))*.