blocked vs leading nowhere

blocked

adj
  • Obstructed, so that through movement or flow is prevented or impeded. 

  • Unable to move owing to an obstruction. 

  • Disabled or disconnected, so as to prevent access. 

  • Banned or barred from connecting or logging on. 

  • Drunk 

leading nowhere

How often have the words blocked and leading nowhere occurred in a corpus of books? (source: Google Ngram Viewer )