Perhaps you should try some spelling variations:
"literatura _el del islam." » "literatura del del islam.", "literatura el del islam.", "literatura de del islam.", "literatura _el el islam.", "literatura piel del islam.", "literatura edel del islam."
"literatura e de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del de isaac.", "literatura y de isaac.", "literatura _ de isaac."
"literatura _ e islas." » "literatura _ el islam."

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 _ e islas.") OR ("literatura e de isaac."))) OR ("literatura _el del islam."))~.
• Removing quotes may allow a broader search: (((( literatura _ e islas. ) or ( literatura e de isaac. ))) or ( literatura _el del islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura _ e islas.") or ("literatura e de isaac."))) or ("literatura _el del islam."))*.