Perhaps you should try some spelling variations:
"literatura arabes y isla." » "literatura arabe y isla.", "literature arab y isla.", "literatura area y isla.", "literatura arabes e isla."
"literatura arte y isla." » "literatura arabe y isla.", "literatura breve y isla.", "literatura entre y isla.", "literatura arte 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.

You may be able to get more results by adjusting your search query.

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