buy into vs reject

buy into

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

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

reject

verb
  • To refuse a romantic advance. 

  • To refuse to accept. 

  • To block a shot, especially if it sends the ball off the court. 

noun
  • A rejected takeoff. 

  • A rejected defective product in a production line. 

  • Something that is rejected. 

  • An unpopular person. 

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