get hold of vs help oneself

get hold of

verb
  • To control or stabilize (oneself). 

  • To pick up or grab. 

  • To obtain. 

  • To contact (a person). 

help oneself

verb
  • To exhibit self-control. 

  • Used other than figuratively or idiomatically: see help. 

  • To serve oneself, especially to take food or other supplies, rather than wait to be served by another; used to indicate friendly permission or invitation. 

  • To take something freely; to serve oneself without restraint. 

How often have the words get hold of and help oneself occurred in a corpus of books? (source: Google Ngram Viewer )