Perhaps you should try some spelling variations:
"literatura del de islam." » "literatura de de islam.", "literatura en de islam.", "literatura del de isla.", "literatura del e islam.", "literatura del de ilam.", "literatura del dean islam."
"literatura d_ del islam." » "literatura de del islam.", "literatura d del islam.", "literatura en del islam.", "literatura d_ el islam."
"literatura _ de islam." » "literatura _ de isla.", "literatura _ e islam.", "literatura _ de ilam."

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