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

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