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