Perhaps you should try some spelling variations:
"literatura arabe _ isaac." » "literatura breve _ isaac.", "literatura de _ isaac.", "literatura e _ isaac."
"literatura des de isaac." » "literatura de de isaac.", "literatura es de isaac.", "literatura desde de isaac."
"literatura del de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del dean isaac."

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 _ isaac.") or ((("literatura des de isaac.") OR ("literatura del de isaac."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura arabe _ isaac.") OR ((("literatura des de isaac.") OR ("literatura del de isaac.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura arabe _ isaac.\") or (((\"literatura des de isaac.\") OR (\"literatura del de isaac.\"))))".
• Removing quotes may allow a broader search: (( literatura arabe _ isaac. ) or ((( literatura des de isaac. ) OR ( literatura del de isaac. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura arabe _ isaac.") or ((("literatura des de isaac.") OR ("literatura del de isaac."))))*.