moving vs on wheels

moving

adj
  • That moves or move. 

  • That causes someone to feel emotion. 

noun
  • The relocation of goods 

  • A causing of a movement 

on wheels

prep
  • Used other than figuratively or idiomatically: see on, wheels. (Having wheels affixed to the bottom, and so transportable; synonym of wheeled). 

  • Mobile; able to be moved; especially, synonym of on the move. 

  • To a large degree, excessively. 

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