pariah dog vs sighthound

pariah dog

noun
  • Synonym of pye-dog: a half-wild stray dog, particularly in Indian contexts. 

sighthound

noun
  • A hound that primarily hunts by sight and speed, instead of by scent and endurance. 

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