drive away vs expel

drive away

verb
  • To force someone or something to leave 

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

expel

verb
  • To deport. 

  • To eject or erupt. 

  • To remove from membership. 

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