complacency vs sadomasochism

complacency

noun
  • A feeling of contented self-satisfaction, especially when unaware of upcoming trouble. 

  • Passivity as a result of contentment with the current situation. 

sadomasochism

noun
  • Sadism and masochism: the (often sexual) enjoyment by one person of both inflicting and receiving pain. 

  • The practices of sadism and masochism collectively, usually in reference to consensual practices within the BDSM community. 

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