Perhaps you should try some spelling variations:
"literatura ens e isolda." » "literatura en e isolda.", "literatura es e isolda.", "literatura e e isolda.", "literatura ens de isolda.", "literatura ens e isela.", "literatura ens e isla."
"literatura y de isaias." » "literatura y de indias.", "literatura y de isaac."
"literatura de de isla." » "literatura de de isaac.", "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 de de isla.") OR ("literatura y de isaias."))) OR ("literatura ens e isolda."))~.
• Removing quotes may allow a broader search: (((( literatura de de isla. ) or ( literatura y de isaias. ))) or ( literatura ens e isolda. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de de isla.") or ("literatura y de isaias."))) or ("literatura ens e isolda."))*.