get hold of vs megastudy

get hold of

verb
  • To pick up or grab. 

  • To obtain. 

  • To control or stabilize (oneself). 

  • To contact (a person). 

megastudy

noun
  • A relatively large study 

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