promo vs pushing

promo

noun
  • an interview or monologue intended to promote a character or an upcoming match. 

verb
  • To promote; to publicize. 

pushing

noun
  • The act by which something is pushed. 

adj
  • That pushes forward; pressing, driving. 

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