Perhaps you should try some spelling variations:
"literatura entre del islam." » "literatura en del islam.", "literaria entre del islam.", "literatura de del islam.", "literatura entrega del islam.", "literatura entre deux islam.", "literatura entre diez islam.", "literatura entre el islam."
"literatura arabe el or arabe et islam." » "literatura arabe en or arabe et islam.", "literatura arabe e or arabe et islam.", "literatura arabes del or arabe et islam.", "literatura arabe el or arabe en islam.", "literatura arabe el or arabe e islam.", "literatura arabe el or arabi et islam."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura entre del islam.") or ("literatura ((arabe el) or (arabe et)) islam."))~.
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• Adding a wildcard symbol may retrieve word variants: (("literatura entre del islam.") or ("literatura ((arabe el) or (arabe et)) islam."))*.