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