leave someone holding the bag vs throw over

leave someone holding the bag

verb
  • To abandon somebody, leaving him or her holding the responsibility or blame. 

  • To remove the value from an article or arrangement and leave somebody holding the empty (or valueless) container. 

throw over

verb
  • To discard or give up (a plan or project, etc.). 

  • To end a romantic/sexual relationship with. 

How often have the words leave someone holding the bag and throw over occurred in a corpus of books? (source: Google Ngram Viewer )