doing vs last straw

doing

noun
  • A deed or action, especially when somebody is held responsible for it. 

intj
  • The sound made by an elastic object when struck by or striking a hard object. 

last straw

noun
  • A small addition to a burden which causes it to exceed the capacity. 

How often have the words doing and last straw occurred in a corpus of books? (source: Google Ngram Viewer )