Perhaps you should try some spelling variations:
"literatura arabees y isla." » "literatura arabe y isla.", "literatura arte y isla.", "literatura area y isla.", "literatura arabes y isla.", "literatura arabes e isla.", "literatura arabees e isla."
"literature arab y isla." » "literatura arabe y isla.", "literature early y isla.", "literatura para y isla.", "literature arabe y isla.", "literature arab _ isla.", "literature arabes y isla.", "literature arab e isla."
"literatura e e isaac." » "literatura de e isaac.", "literatura en e isaac.", "literatura del e isaac.", "literatura e de isaac.", "literatura e en isaac.", "literatura e _ isaac.", "literatura el e isaac."

Try widening your search to All Fields.

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