accomplish vs top it off

accomplish

verb
  • To complete, as time or distance. 

  • To finish successfully. 

  • to fill out a form. 

  • To execute fully; to fulfill; to complete successfully. 

top it off

verb
  • To emphasize or underscore; to make something even better or worse. 

How often have the words accomplish and top it off occurred in a corpus of books? (source: Google Ngram Viewer )