assist vs fast track

assist

verb
  • To make a pass that leads directly towards scoring. 

  • To help. 

  • To help compensate for what is missing with the help of a medical technique or therapy. 

noun
  • A decisive pass made to the goal scorer 

  • A helpful action or an act of giving. 

  • A defensive play, allowing a teammate to record a putout. 

fast track

verb
  • To progress something with unusual rapidity. 

noun
  • A racetrack with optimum conditions for high speeds 

  • A railroad for express trains. 

  • The quickest or most direct method or path. 

  • A high-pressure or intensely competitive situation, particularly one characterised by rapid advancement. 

How often have the words assist and fast track occurred in a corpus of books? (source: Google Ngram Viewer )