bring to heel vs colonize

bring to heel

verb
  • To cause to act in a disciplined manner. 

  • To compel someone to obey; to force someone into a submissive condition. 

colonize

verb
  • To intrude into and take over (the autonomy, experience, social movement, etc, of a less powerful person or group); to commandeer or appropriate. 

  • To begin a colony or colonies. 

  • To settle (a place) with colonists, and hence make (a place) into a colony. 

  • To settle among and establish control over (the indigenous people of an area). 

  • To settle (a group of people, a species, or the like) in a place as a colony. 

How often have the words bring to heel and colonize occurred in a corpus of books? (source: Google Ngram Viewer )