brain-washing vs tutelage

brain-washing

noun
  • A form of indoctrination that forces people to abandon their beliefs in favour of another set of beliefs by conditioning through various forms of pressure or torture 

tutelage

noun
  • The state of being under a guardian or a tutor; care or protection enjoyed. 

  • The act of guarding, protecting, or guiding; guardianship; protection 

  • Instruction; teaching; guidance. 

How often have the words brain-washing and tutelage occurred in a corpus of books? (source: Google Ngram Viewer )