promote vs sandbag

promote

verb
  • To advocate or urge on behalf of (something or someone); to attempt to popularize or sell by means of advertising or publicity. 

  • To increase the activity of (a catalyst) by changing its surface structure. 

  • To elevate to a higher league. 

  • To raise (someone) to a more important, responsible, or remunerative job or rank. 

  • To move on to a subsequent stage of education. 

  • To encourage, urge or incite. 

  • To exchange (a pawn) for a queen or other piece when it reaches the eighth rank. 

sandbag

verb
  • To conceal or misrepresent one's true position, potential, or intent in order to gain an advantage. 

  • To strike someone with a sandbag or other object to disable or render unconscious. 

  • To construct a barrier of sandbags around. 

  • To pretend to drink early on so that, as the night draws on, one can drink everybody else "under the table". 

  • To deceive someone by pretending to be weak, or (card games) by pretending to have a weak hand. 

noun
  • A sturdy sack filled with sand, generally used in large numbers to make defensive walls against flooding, bullets, or shrapnel. 

  • An engraver's leather cushion, etc. 

  • A small bag filled with sand and used as a cudgel. 

  • A deceptive play whereby a player with a strong hand bets weakly or passively. 

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