Perhaps you should try some spelling variations:
"literatura arab_ del islam." » "literatura arabe del islam.", "literature arab del islam.", "literatura para del islam.", "literatura arabes del islam.", "literatura arabe de islam.", "literatura arabe el islam.", "literatura arab_ el islam."
"literatura arab_ e islam." » "literatura arabe e islam.", "literature arab e islam.", "literatura para e islam.", "literatura arabes e islam.", "literatura arabe de islam.", "literatura arab_ el islam.", "literatura arab_ e islas."
"literatura e de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isla.", "literatura e de isaac.", "literatura y de isla.", "literatura _ de isla."

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