change over vs tailor

change over

verb
  • to convert to, to make a transition from one system to another 

tailor

verb
  • To make or adapt (something) for a specific need. 

  • To restrict (something) in order to meet a particular need. 

  • To make, repair, or alter clothes. 

noun
  • The bluefish (Pomatomus saltatrix). 

  • A person who makes, repairs, or alters clothes professionally, especially suits and men's clothing. 

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