behemoth vs flying dragon

behemoth

noun
  • Something which has the qualities of great power and might, and monstrous proportions. 

  • Any great and mighty monster. 

  • A great and mighty beast God shows Job in Job 40:15–24. 

flying dragon

noun
  • Used other than figuratively or idiomatically: see flying, dragon. 

  • Draco volans, a gliding lizard endemic to Southeast Asia. 

  • Any lizard in the genus Draco. 

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