break with vs mix it up

break with

verb
  • To cease having a positive connection with (a person, group, movement, etc). 

  • Used other than figuratively or idiomatically: see break, with. 

mix it up

verb
  • To engage with people, relate to people. 

  • To create one or more variations of the usual way in which something is done. 

  • To compete vigorously, to quarrel, or to fight physically. 

How often have the words break with and mix it up occurred in a corpus of books? (source: Google Ngram Viewer )