disappearance vs homecoming

disappearance

noun
  • The action of disappearing or vanishing. 

homecoming

noun
  • The act or event of returning home. 

  • In colleges and high schools, a tradition centred around a football game, a parade and the "coronation" of a Homecoming Queen. 

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