hand off vs leave behind

hand off

verb
  • to pass or transfer. 

  • to pass (the ball) to a teammate 

leave behind

verb
  • To pass. 

  • Used other than figuratively or idiomatically: see leave, behind. 

  • To abandon. 

  • To leave (a trace of something). 

  • To not live longer than; to be survived by. 

  • To forget about. 

  • To outdo; to progress faster than (someone or something else). 

How often have the words hand off and leave behind occurred in a corpus of books? (source: Google Ngram Viewer )