maintain vs show out

maintain

verb
  • To declare or affirm (a clause) to be true; to assert. 

  • To keep up; to preserve; to uphold (a state, condition etc.). 

show out

verb
  • To escort someone out of an event or place. 

  • To display or present oneself; represent. 

How often have the words maintain and show out occurred in a corpus of books? (source: Google Ngram Viewer )