Perhaps you should try some spelling variations:
"literatura en del islam." » "literatura espana del islam.", "literatura deln del islam.", "literatura en el islam."
"literatura e et islam." » "literatura del et islam.", "literatura e el islam.", "literatura e e islam.", "literatura e e islas.", "literatura e en islam.", "literatura y et islam."
"literatura de de islam." » "literatura de de isla.", "literatura de e islam.", "literatura de de ilam.", "literatura de fe islam.", "literatura de di 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 et islam.") OR ("literatura en del islam."))) OR ("literatura de de islam."))~.
• Removing quotes may allow a broader search: (((( literatura e et islam. ) or ( literatura en del islam. ))) or ( literatura de de islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura e et islam.") or ("literatura en del islam."))) or ("literatura de de islam."))*.