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 del islam.", "literature arabe e islam.", "literature arab _ islam.", "literature arabes e islam."
"literatura al e islam." » "literatura el e islam.", "literatura del e islam.", "literatura de e islam.", "literatura al el islam.", "literatura al del islam.", "literatura al de islam.", "literatura a e islam."
"literatura al e islas." » "literatura el e islas.", "literatura del e islas.", "literatura de e islas.", "literatura al el islam.", "literatura al de islas.", "literatura a e islas."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("literature arab e islam.") or ((("literatura al e islam.") OR ("literatura al e islas."))))~.
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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literature arab e islam.\") or (((\"literatura al e islam.\") OR (\"literatura al e islas.\"))))".
• Removing quotes may allow a broader search: (( literature arab e islam. ) or ((( literatura al e islam. ) OR ( literatura al e islas. )))).
• Adding a wildcard symbol may retrieve word variants: (("literature arab e islam.") or ((("literatura al e islam.") OR ("literatura al e islas."))))*.