come by vs have conferred on one

come by

intj
  • A command to a sheepdog to move clockwise around the sheep 

verb
  • To come near to; to pass; to visit. 

  • To obtain; to get, especially by chance or involuntarily. 

have conferred on one

How often have the words come by and have conferred on one occurred in a corpus of books? (source: Google Ngram Viewer )