blagging vs smash and grab

blagging

noun
  • A robbery. 

smash and grab

noun
  • A robbery where a window of a shop or other premises is smashed and items are grabbed as quickly as possible. 

  • An act of theft, appropriation, or other form of gaining advantage at another's expense that is done quickly and audaciously. 

verb
  • To perform a smash and grab. 

How often have the words blagging and smash and grab occurred in a corpus of books? (source: Google Ngram Viewer )