POST vs get off the ground

POST

verb
  • To successfully perform a power-on self-test. 

noun
  • An HTTP request method used to send an arbitrary amount of data to a web server. 

get off the ground

verb
  • To succeed or begin to succeed. 

  • To make (something) succeed. 

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