level set vs throw in with

level set

verb

  • To establish a baseline of mutual understanding 

noun

  • An event consisting of level setting 

  • The set of values x for which a real-valued function f(x) is equal to a given constant. 

  • A state of mutual understanding among parties 

throw in with

verb

  • To commit to something with; to partner with. 

How often have the words level set and throw in with occurred in a corpus of books? (source: Google Ngram Viewer )