reward vs turn a profit

reward

verb
  • To give a reward to or for. 

  • To recompense. 

noun
  • Something of value given in return for an act. 

  • A prize promised for a certain deed or catch 

  • The result of an action, whether good or bad. 

turn a profit

verb
  • To gain money or to gain materially. 

  • To obtain profit from an investment. 

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