exchange of contracts vs give-and-take

exchange of contracts

noun
  • The act of exchanging contracts. 

  • The point or stage at which a conveyancing contract comes into existence between negotiating parties for the carrying out of a disposition of an estate in land; usually requiring the payment of a deposit. 

give-and-take

noun
  • The settling of differences through compromise and mutual concessions. 

  • A lively exchange of conversation. 

How often have the words exchange of contracts and give-and-take occurred in a corpus of books? (source: Google Ngram Viewer )