deal with vs take on

deal with

verb
  • To take action with respect to (someone or something). 

  • To be in charge of, act on, or dispose of. 

  • To behave in a certain way towards. 

  • To consider, as an example. 

  • To handle verbally or in some form of artistic expression; to address or discuss as a subject. 

  • To come to terms with; to overcome any difficulties presented by. 

take on

verb
  • To assume or take responsibility for. 

  • To (attempt to) dribble round (an opposition player). 

  • To catch on, do well; to become popular. 

  • To obtain the services of (a person) in exchange for remuneration; to give someone a job. 

  • To begin to have or exhibit. 

  • To attempt to fight, compete with, or engage with. 

  • To acquire, bring in, or introduce. 

  • To grieve or be concerned (about something or someone). 

How often have the words deal with and take on occurred in a corpus of books? (source: Google Ngram Viewer )