buy into vs procure

buy into

verb
  • To believe; to accept a craze or fad as valid. 

  • To buy stocks or shares of (a business). 

procure

verb
  • To induce or persuade someone to do something. 

  • To obtain a person as a prostitute for somebody else. 

  • To acquire or obtain. 

How often have the words buy into and procure occurred in a corpus of books? (source: Google Ngram Viewer )