bungalow vs holiday home

bungalow

noun
  • A thatched or tiled one-story house in India surrounded by a wide veranda; a similar house in this style. 

  • A single-storey house, typically with rooms all on one level, or sometimes also with upper rooms set into the roof space. 

holiday home

noun
  • A second home used for holidays. 

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