diversity vs semblance

diversity

noun
  • The quality of being diverse or different; difference or unlikeness. 

  • Equal-opportunity inclusion. 

  • A variety; diverse types or examples. 

semblance

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

  • the way something looks; appearance; form 

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