get after vs pick apart

get after

verb
  • To move into action in pursuit of something. 

  • To attempt to convince another to move into action. 

  • To move into action in attempt to catch or defeat another. 

pick apart

verb
  • To overcome by skilled execution. 

  • Used other than figuratively or idiomatically: see pick, apart. 

  • To criticise (especially small details). 

  • To review or analyse in great detail 

How often have the words get after and pick apart occurred in a corpus of books? (source: Google Ngram Viewer )