voodooism vs witchery

voodooism

noun
  • Any voodoo practice. 

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

witchery

noun
  • An act of witchcraft. 

  • Allure, charm, magic. 

  • Witchcraft. 

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