be in cahoots with vs contrive

be in cahoots with

contrive

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

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

  • To invent by an exercise of ingenuity; to devise 

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