subterfuge vs trickery

subterfuge

noun
  • Deception; misrepresentation of the true nature of an activity. 

  • An indirect or deceptive device or stratagem; a blind. Refers especially to war and diplomatics. 

trickery

noun
  • Deception or underhanded behavior. 

  • The art of dressing up; imposture. 

  • Artifice; the use of one or more stratagems. 

  • An instance of deception, underhanded behavior, dressing up, imposture, artifice, etc. 

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