Perhaps you should try some spelling variations:
"literatura del de islam." » "literatura en de islam.", "literatura del del islam.", "literatura del e islam.", "literatura del de ilam.", "literatura del de isaacm.", "literatura del dean islam."
"literatura _ de islam." » "literatura _ del islam.", "literatura _ e islam.", "literatura _ de ilam.", "literatura _ de isaacm."
"literatura de de isla." » "literatura de de isaac.", "literatura de fe isla.", "literatura de di isla."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura de de isla.") or ("literatura del de islam."))) or ("literatura _ de islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de de isla.") OR ("literatura del de islam."))) OR ("literatura _ de islam.")).
• Removing quotes may allow a broader search: (((( literatura de de isla. ) or ( literatura del de islam. ))) or ( literatura _ de islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura de de isla.") or ("literatura del de islam."))) or ("literatura _ de islam."))*.