please vs work up

please

verb
  • To make happy or satisfy; to give pleasure to. 

  • To desire; to will; to be pleased by. 

adv
  • An expression of annoyance or impatience. 

  • Said as a request to repeat information. 

  • Used to make a polite request. 

  • Used as an affirmative to an offer. 

work up

verb
  • To raise; to excite; to stir up. 

  • To give (a patient) a general medical examination to assess health and fitness. 

  • To develop. 

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