contrive vs level set

contrive

verb
  • To invent by an exercise of ingenuity; to devise 

  • To invent, to make devices; to form designs especially by improvisation. 

  • To project, cast, or set forth, as in a projection of light. 

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 

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