cataclysm vs hard luck

cataclysm

noun

  • A sudden, violent event. 

  • A sudden and violent change in the earth's crust. 

  • A great flood. 

hard luck

noun

  • Bad luck. 

intj

  • Expressed to someone suffering misfortune. 

How often have the words cataclysm and hard luck occurred in a corpus of books? (source: Google Ngram Viewer )