voodooism vs wizardry

voodooism

noun
  • Any voodoo practice. 

  • A religious cult, from Haiti, involving witchcraft and sorcery. 

wizardry

noun
  • The art of a wizard; sorcery. 

  • Something, such as an advanced technology, that gives the appearance of magic. 

  • Great ability in some specified field. 

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