dachshund vs gun dog

dachshund

noun
  • A certain breed of dog having short legs and a long trunk, including standard-sized, miniature (smooth-haired, long-haired, and short-haired) varieties. 

gun dog

noun
  • A breed of dog used by hunters to find, flush out and retrieve birds and other game. 

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