quinella vs side bet

quinella

noun
  • A form of bet in which the bettor predicts the first two finishers in a race, without concern for the order of finishing. 

verb
  • To have two team members, horses, etc., finish first and second in the same event. 

side bet

noun
  • A bet on some aspect of a game or competition that is not the main bet of the game or the prize of the competition; proposition bet. 

  • An investment of time, money, or resources that reinforces one's commitment to a course of action. 

  • An investment or risk undertaken by a company that is not part of its core business. 

How often have the words quinella and side bet occurred in a corpus of books? (source: Google Ngram Viewer )