accomplish vs obtain

accomplish

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

  • To finish successfully. 

  • to fill out a form. 

  • To complete, as time or distance. 

obtain

verb
  • To get hold of; to gain possession of, to procure; to acquire, in any way. 

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