Perhaps you should try some spelling variations:
"literatura arabes e isolda." » "literatura arabe e isolda.", "literatura arte e isolda.", "literature arab e isolda.", "literatura arabes de isolda.", "literatura arabes e isela.", "literatura arabes e isla."
"literatura en de isaac." » "literatura espana de isaac."
"literatura de de isla." » "literatura de fe isla.", "literatura de di isla."

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 en de isaac.") OR ("literatura de de isla."))) OR ("literatura arabes e isolda."))~.
• Removing quotes may allow a broader search: (((( literatura en de isaac. ) or ( literatura de de isla. ))) or ( literatura arabes e isolda. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura en de isaac.") or ("literatura de de isla."))) or ("literatura arabes e isolda."))*.