persuade vs twist someone's arm

persuade

verb
  • To successfully convince (someone) to agree to, accept, or do something, usually through reasoning and verbal influence. 

twist someone's arm

verb
  • To coerce, force, or cajole. 

  • Used other than figuratively or idiomatically: To apply torsion along the length of the arm of (a person). 

How often have the words persuade and twist someone's arm occurred in a corpus of books? (source: Google Ngram Viewer )