dead-end vs fall down on

dead-end

verb
  • To come to a dead-end. 

noun
  • A road with no exit. 

  • A position that offers no hope of progress. 

adj
  • Going nowhere; blocked. 

fall down on

verb
  • To fail at or leave incomplete. 

  • To stumble or unintentionally descend and land on 

  • To collapse so that the remains are on top of. 

  • To prostrate oneself in a position that rests on 

How often have the words dead-end and fall down on occurred in a corpus of books? (source: Google Ngram Viewer )