association football vs international rules football

association football

noun
  • A ball game played between two teams of eleven players, each attempting to win by scoring more goals than their opponent. 

international rules football

noun
  • A sport created as a mixture of Australian rules football and Gaelic football, to allow international matches between Australia and Ireland. 

How often have the words association football and international rules football occurred in a corpus of books? (source: Google Ngram Viewer )