bag snatcher vs kidnap

bag snatcher

noun
  • A thief who snatches a handbag, shoulder bag, rucksack, etc., from the person carrying it. 

kidnap

noun
  • The crime, or an instance, of kidnapping. 

verb
  • To seize or detain a person unlawfully and move or conceal them; sometimes for ransom. 

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