farming vs old sod

farming

noun
  • The business of cultivating land, raising stock etc. 

  • A farming operation; a farm, or instance of farming on a piece of land. 

adj
  • Raising livestock or fish. 

  • Pertaining to the agricultural business. 

old sod

noun
  • The old country; one's place of origin. 

  • Used other than figuratively or idiomatically: see old, sod (person). 

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