by no means vs virtually

by no means

prep
  • certainly not; definitely not; not by any means. 

virtually

adv
  • Of a covering space of finite index. 

  • In essence, but not in fact. 

  • By computer or in cyberspace 

  • Of a substructure of finite index. 

  • Without exaggeration. 

  • Almost but not quite. 

How often have the words by no means and virtually occurred in a corpus of books? (source: Google Ngram Viewer )