bocce vs bowling ball

bocce

noun
  • One of the eight balls that the player throws in a game of bocce. 

  • A game, similar to bowls or pétanque, played on a long, narrow, dirt-covered court 

bowling ball

noun
  • A solid ball used in the sport of bowling, with finger holes allowing it to be picked up. 

How often have the words bocce and bowling ball occurred in a corpus of books? (source: Google Ngram Viewer )