English billiards vs cue sport

English billiards

noun
  • A hybrid form of carom and pocket billiards played on a billiard table, for two players or teams. 

cue sport

noun
  • A game played with a cue and balls, such as billiards. 

How often have the words English billiards and cue sport occurred in a corpus of books? (source: Google Ngram Viewer )