manage vs sit on

manage

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

  • To direct or be in charge of. 

  • 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. 

sit on

verb
  • To restrain (a person). 

  • To take no action on; to hold in reserve without actually using. 

  • To hold an official inquiry regarding; to deliberate about. 

  • To block, suppress, restrain. 

  • To be a member of. 

  • Used other than figuratively or idiomatically: see sit, on. 

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