POST vs work in

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. 

work in

verb
  • To work out using a machine in between the sets of someone who is already using that machine. 

  • To find time or space for, amid other things. 

  • Used other than figuratively or idiomatically: see work, in. 

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