Perhaps you should try some spelling variations:
"literatura arabes del islam." » "literatura arabe del islam.", "literatura arte del islam.", "literature arab del islam.", "literatura arabes de islam.", "literatura arribes del islam.", "literatura arabes e islam.", "literatura arabes el islam."
"literatura arabe el or arabes del islam." » "literatura arabe el or arabes de islam.", "literatura arabe el or arribes del islam.", "literatura arabe el or arabes e islam.", "literatura arabe en or arabes del islam.", "literatura arabe e or arabes del islam.", "literatura arabe et or arabes del islam."

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