pull off vs win through

pull off

verb
  • To achieve; to succeed at something difficult. 

  • To begin moving and then move away; to pull away. 

  • To masturbate. 

  • To remove by pulling. 

  • To turn off a road (onto the side of the road, or onto another road). 

win through

verb
  • to attain one's goal in the end, despite obstacles along the way 

How often have the words pull off and win through occurred in a corpus of books? (source: Google Ngram Viewer )