Perhaps you should try some spelling variations:
"literatura breve e isla." » "literatura de e isla.", "literatura en e isla.", "literatura del e isla.", "literatura breve de isla.", "literatura breve en isla.", "literatura breve el isla.", "literatura breve e islas.", "literatura breve e isela."
"literatura arabe e isla." » "literatura de e isla.", "literatura e e isla.", "literatura al e isla.", "literatura arabes e isla.", "literatura arabe de isla.", "literatura arabe en isla.", "literatura arabe e islas.", "literatura arabe e isela."
"literatura arabe e islam." » "literatura de e islam.", "literatura e 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 arabe e islasm.", "literatura arabe e iselam."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura breve e isla.") or ((("literatura arabe e isla.") OR ("literatura arabe e islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura breve e isla.") OR ((("literatura arabe e isla.") OR ("literatura arabe e islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura breve e isla.\") or (((\"literatura arabe e isla.\") OR (\"literatura arabe e islam.\"))))".
• Removing quotes may allow a broader search: (( literatura breve e isla. ) or ((( literatura arabe e isla. ) OR ( literatura arabe e islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura breve e isla.") or ((("literatura arabe e isla.") OR ("literatura arabe e islam."))))*.