Perhaps you should try some spelling variations:
"literature arab e isla." » "literatura arabe e isla.", "literature early e isla.", "literatura para e isla.", "literature arabe e isla.", "literature arab _ isla.", "literature arabes e isla.", "literature arab e islas.", "literature arab e islam.", "literature arab en isla."
"literatura del de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isaac.", "literatura del dean isla.", "literatura del de islas.", "literatura del de islam.", "literatura del den isla."
"literatura es e isela." » "literatura en e isela.", "literatura e e isela.", "literatura el e isela.", "literatura es e isolda.", "literatura es el isela.", "literatura es de isela.", "literatura es en isela."

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