master plan vs ploy

master plan

noun
  • A comprehensive document that sets out an overall strategy; the strategy itself. 

  • A small-scale graphic outline that shows all the major elements of a project. 

ploy

noun
  • A tactic, strategy, or scheme. 

  • Sport; frolic. 

verb
  • To form a column from a line of troops on some designated subdivision. 

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