head up vs supervise

head up

verb
  • To lead or take the lead in; to direct; to take charge of. 

  • To close (a cask, barrel, etc.) by fitting a head to it. 

  • To turn towards the wind 

supervise

verb
  • To oversee or direct a task or organization. 

How often have the words head up and supervise occurred in a corpus of books? (source: Google Ngram Viewer )