guardianship vs handling

guardianship

noun
  • The office or position of one acting as a guardian or conservator, especially in a legal capacity. 

handling

noun
  • A touching, controlling, managing, using, take care of, etc., with the hand or hands, or as with the hands. 

  • A criminal offence, the trade in stolen goods. 

  • The mode of using the pencil or brush; style of touch. 

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