hinder vs turn on to

hinder

verb
  • To make difficult to accomplish; to act as an obstacle; to frustrate. 

  • To delay or impede; to keep back, to prevent. 

noun
  • The buttocks. 

adj
  • Of or belonging to that part or end which is in the rear or hind, or which follows. 

turn on to

How often have the words hinder and turn on to occurred in a corpus of books? (source: Google Ngram Viewer )