drive a wedge between vs set against

drive a wedge between

verb
  • To cause dispute or hostility between. 

  • To separate. 

set against

verb
  • To cause an individual to be in conflict or opposition with someone or something. 

  • To have a strong feeling of not desiring to do something. 

How often have the words drive a wedge between and set against occurred in a corpus of books? (source: Google Ngram Viewer )