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

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