manage vs take on

manage

verb
  • To direct or be in charge of. 

  • To handle or control (a situation, job). 

  • To achieve (something) without fuss, or without outside help. 

  • To manage to say; to say while fighting back embarrassment, laughter, etc. 

  • To succeed at an attempt in spite of difficulty. 

  • To train (a horse) in the manège; to exercise in graceful or artful action. 

  • To handle with skill, wield (a tool, weapon etc.). 

noun
  • Manège. 

take on

verb
  • To acquire, bring in, or introduce. 

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

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