magic trick vs thaumaturgy

magic trick

noun
  • A remarkable act carried out purportedly by magical means but actually by trickery or illusion, generally as a form of entertainment. 

thaumaturgy

noun
  • The working of miracles, wonderworking; magic, witchcraft, wizardry. 

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