hogan vs villa

hogan

noun
  • A one-room Navajo dwelling or ceremonial lodge, constructed of wood and earth and covered with mud. 

villa

noun
  • A country house, with farm buildings around a courtyard. 

  • A family house, often semi-detached, in a middle class street. 

  • A house, often larger and more expensive than average, in the countryside or on the coast, often used as a retreat. 

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