come for vs get behind

come for

verb
  • Used other than figuratively or idiomatically: see come, for. 

  • To search for someone with the intent to apprehend or cause harm. 

  • To target someone for competition or attack. 

get behind

verb
  • Used other than figuratively or idiomatically: see get, behind. 

  • To support, to cheer on. 

  • To have a trip or any pleasurable experience with drugs. 

  • To come to believe something; to change one's mind into a new position. 

  • To appreciate, to enjoy. 

How often have the words come for and get behind occurred in a corpus of books? (source: Google Ngram Viewer )