bondage vs exploitation

bondage

noun
  • The practice of physically restraining people for sexual pleasure, such as by tying up or shackling. 

  • The state of being enslaved or the practice of slavery. 

  • Applied to clothing with many buckles, zips, etc., associated with punk and goth subcultures. 

  • The state of lacking freedom; constraint. 

exploitation

noun
  • The act or result of forcibly depriving someone of something to which they have a natural right. 

  • The improper use of something for selfish purposes. 

  • The act of utilizing something; industry. 

  • The marketing and promotion of a film. 

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