semblance vs uniformity

semblance

noun
  • likeness, similarity; the quality of being similar. 

  • the way something looks; appearance; form 

uniformity

noun
  • The absence of alternatives or diversity; sameness. 

  • The state of being uniform, alike and lacking variety. 

  • A collection of identical things 

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