Perhaps you should try some spelling variations:
"literatura caribe y isaac." » "literatura arabe y isaac.", "literatura arte y isaac.", "literatura maria y isaac.", "literatura caribe _ isaac.", "literatura caribe c isaac.", "literatura caribe e isaac."
"literatura de de isla." » "literatura de de isaac.", "literatura de fe isla.", "literatura de di isla."
"literatura _ de isla." » "literatura _ de isaac."

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

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