ethnic cleansing vs victimization

ethnic cleansing

noun
  • The mass expulsion or killing of people belonging to one ethnic group by those of another. 

victimization

noun
  • Adversity as a result of being a victim. 

  • An act that victimizes or exploits someone. 

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