fine-tooth comb vs hairbrush

fine-tooth comb

noun
  • A comb with fine, closely spaced teeth, especially one used for removing head lice and their nits (eggs) from the hair; a nit comb. 

  • A means of making a thorough search. 

verb
  • To search (something or somewhere) meticulously. 

hairbrush

noun
  • A brush used in hair care for brushing, tidying, and detangling hair 

verb
  • To spank with a hairbrush. 

How often have the words fine-tooth comb and hairbrush occurred in a corpus of books? (source: Google Ngram Viewer )