bad blood vs niceness

bad blood

noun
  • Feelings of hostility or ill will. 

  • A particular disease; in some places, syphilis. 

  • A serious feud or long-standing grudge. 

niceness

noun
  • A value determining how much processor time to concede to a running process. (See also nice (verb), renice.) 

  • Effeminacy; indulgence in soft living or luxuriousness. 

  • Fastidiousness; fine sensitivity. 

  • Pleasantness, especially of behaviour or personality; agreeableness. 

How often have the words bad blood and niceness occurred in a corpus of books? (source: Google Ngram Viewer )