drive away vs flush out

drive away

verb
  • Used other than figuratively or idiomatically: see drive, away. 

  • To force someone or something to leave 

flush out

verb
  • Used other than figuratively or idiomatically: see flush, out. 

  • To drive out or expose something or someone, as a game bird or other game animal from cover. 

  • To flesh out. 

How often have the words drive away and flush out occurred in a corpus of books? (source: Google Ngram Viewer )