massage vs shampooing

massage

noun
  • The action of rubbing, kneading or hitting someone's body, to help the person relax, prepare for muscular action (as in contact sports) or to relieve aches. 

verb
  • To falsify (data or accounts). 

  • To rub and knead (someone's body or a part of a body), to perform a massage on (somebody). 

  • To manipulate (data, a document etc.) to make it more presentable or more convenient to work with. 

shampooing

noun
  • The act of cleaning something with shampoo. 

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