crank up vs speak highly

crank up

verb
  • To describe in praiseworthy terms; to promote. 

  • To increase, as the volume, power or energy of something. 

  • To start something mechanical, an act that often used to involve cranking. 

speak highly

verb
  • To praise. 

How often have the words crank up and speak highly occurred in a corpus of books? (source: Google Ngram Viewer )