carrier bag vs sacking

carrier bag

noun
  • A bag made of thin polythene or paper, generally used for carrying groceries or other purchased items. 

sacking

noun
  • Cheap rough cloth such as would be used to make bags (sacks). 

  • Firing or termination of an employee. 

How often have the words carrier bag and sacking occurred in a corpus of books? (source: Google Ngram Viewer )