Perhaps you should try some spelling variations:
"literatura arabe y islam." » "literatura e y islam.", "literatura al y islam.", "literatura caribe y islam.", "literatura arabes e islam.", "literatura arabe e islam.", "literatura arabe _ islam.", "literatura arabe el islam."
"literatura breve de isla." » "literatura en de isla.", "literatura del de isla.", "literatura e de isla.", "literatura breve de isaac."
"literatura de de isla." » "literatura de de isaac.", "literatura de fe isla.", "literatura de di 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 y islam.") or ((("literatura breve de isla.") OR ("literatura de de isla."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura arabe y islam.") OR ((("literatura breve de isla.") OR ("literatura de de isla.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura arabe y islam.\") or (((\"literatura breve de isla.\") OR (\"literatura de de isla.\"))))".
• Removing quotes may allow a broader search: (( literatura arabe y islam. ) or ((( literatura breve de isla. ) OR ( literatura de de isla. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura arabe y islam.") or ((("literatura breve de isla.") OR ("literatura de de isla."))))*.