ransack vs root about

ransack

verb
  • To make a vigorous and thorough search of (a place, person) with a view to stealing something, especially when leaving behind a state of disarray. 

  • To violate; to ravish; to deflower. 

  • To loot or pillage. See also sack. 

noun
  • Eager search. 

root about

verb
  • To search for something in a similar manner. 

  • To rummage; to look for something in a somewhat aimless fashion. 

  • To forage by poking the snout here and there. 

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