och vs son of a gun

och

intj
  • an expression of anger, frustration, surprise 

  • general interjection of confirmation, affirmation, and often disapproval. 

son of a gun

intj
  • Used to express anger, contempt, disgust, astonishment, disappointment, etc. 

noun
  • son of a bitch 

  • Used encouragingly or to compliment 

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