manhunt vs shakedown

manhunt

noun
  • An organized search for a criminal or enemy. 

shakedown

noun
  • A thorough search; a frisk 

  • Extortion, especially through blackmail 

  • A trial or test period, especially of a ship or aircraft 

  • An improvised bed. 

adj
  • that tests the performance of a ship or aircraft 

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