Perhaps you should try some spelling variations:
"literature arab el islam." » "literatura arabe el islam.", "literature early el islam.", "literatura para el islam.", "literature arabe el islam.", "literature ajab el islam.", "literature aram el islam."
"literatura al de islam." » "literatura del de islam.", "literatura de de islam.", "literatura en de islam.", "literatura al del islam.", "literatura al de isla.", "literatura al e islam.", "literatura al dr islam."
"literatura el de islam." » "literatura del de islam.", "literatura en de islam.", "literatura e de islam.", "literatura el del islam.", "literatura el de isla.", "literatura el e islam."

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