get to grips with vs take heart

get to grips with

verb
  • To battle (with something). 

  • To deal (with something) decisively, or to confront (it) head on. 

  • To gain an understanding (of something). 

take heart

verb
  • To be courageous; to regain one's courage. 

intj
  • Used when encouraging someone to bear or take up a difficult situation. 

How often have the words get to grips with and take heart occurred in a corpus of books? (source: Google Ngram Viewer )