Perhaps you should try some spelling variations:
"literatura del _ islam." » "literatura de _ islam.", "literatura en _ islam."
"literatura el de isla." » "literatura en de isla.", "literatura de de isla.", "literatura eslava de isla.", "literatura del de isla.", "literatura enl de isla.", "literatura el de isaac."
"literatura e dele islam." » "literatura de dele islam.", "literatura en dele islam.", "literatura e del islam.", "literatura e el islam.", "literatura e de islam.", "literatura el dele islam.", "literatura e delle 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 del _ islam.") OR ("literatura el de isla."))) OR ("literatura e dele islam."))~.
• Removing quotes may allow a broader search: (((( literatura del _ islam. ) or ( literatura el de isla. ))) or ( literatura e dele islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura del _ islam.") or ("literatura el de isla."))) or ("literatura e dele islam."))*.