omit vs pull off

omit

verb
  • To delete or remove; to strike. 

  • To neglect or take no notice of. 

  • To leave out or exclude. 

  • To fail to perform. 

pull off

verb
  • To remove by pulling. 

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

  • To masturbate. 

  • To achieve; to succeed at something difficult. 

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

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