Perhaps you should try some spelling variations:
"literatura breve un islam." » "literatura de un islam.", "literatura en un islam.", "literatura del un islam.", "literatura breve en islam.", "literatura preve un islam.", "literatura breve uned islam.", "literatura breve el islam.", "literatura breve al islam.", "literatura breve _ islam."
"literatura arabe e islam." » "literatura de e islam.", "literatura al e islam.", "literatura arabes e islam.", "literatura arabe de islam.", "literatura arabe en islam.", "literatura arabe el islam.", "literatura arabe e islas.", "literatura arabe del islam."
"literatura e de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isla.", "literatura e de isaac.", "literatura y de isla.", "literatura _ de isla."

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