filching vs light-fingered

filching

noun
  • The act of one who filches; theft. 

light-fingered

adj
  • Having nimble fingers, especially for stealing or picking pockets (pickpocketing), given to thievery or shoplifting. 

  • Having quick, light and nimble fingers. 

How often have the words filching and light-fingered occurred in a corpus of books? (source: Google Ngram Viewer )