Perhaps you should try some spelling variations:
"literatura arabe e isaac." » "literatura breve e isaac.", "literatura de e isaac.", "literatura e e isaac.", "literatura arabes e isaac.", "literatura arabe de isaac.", "literatura arabe en isaac.", "literatura arabe _ isaac."
"literatura arte y isla." » "literatura breve y isla.", "literatura entre y isla.", "literatura aurea y isla.", "literatura arte e isla."
"literatura es y isla." » "literatura en y isla.", "literatura e y isla.", "literatura el y isla.", "literatura es e isla."

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 arabe e isaac.") or ((("literatura arte y isla.") or ("literatura es y isla."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura arabe e isaac.") OR ((("literatura arte y isla.") OR ("literatura es y isla.")))).
• Removing quotes may allow a broader search: (( literatura arabe e isaac. ) or ((( literatura arte y isla. ) or ( literatura es y isla. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura arabe e isaac.") or ((("literatura arte y isla.") or ("literatura es y isla."))))*.