by the same token vs in parallel

by the same token

prep
  • For a similar reason; in a similar manner 

in parallel

prep
  • At the same time; together, concurrently, cotemporally. 

  • Aligned or connected side by side, instead of in series. 

How often have the words by the same token and in parallel occurred in a corpus of books? (source: Google Ngram Viewer )