400. That’s an error.

Google cannot redirect you to http://search.barnesandnoble.com/booksearch/isbninquiry.asp?ean=1402766912&lkid=J14953988&pubid=K118169&byo=1 because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.