400. That’s an error.

Google cannot redirect you to http://www.amazon.com/exec/obidos/external-search/?field-keywords=Nouveau+Dictionnaire+Historique,+Ou+Histoire+Abr%C3%A9g%C3%A9e+tous+les+Hommes+qui+se+sont+fait+un+nom+par+des+talens,+des+vertus,+des+forfaits,+des+erreurs,+etc&index=books 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.