administrate vs look after

administrate

verb
  • to administer 

  • the act or function of providing maintenance and general housekeeping for computer systems, networks, peripheral equipment, etc. 

look after

verb
  • To have as one's business; to manage, be responsible for. 

  • To follow with the eyes; to look in the direction of (someone or something departing). 

  • To care for; to keep safe. 

  • To seek out, to look for. 

How often have the words administrate and look after occurred in a corpus of books? (source: Google Ngram Viewer )