petty theft vs thieving

petty theft

noun
  • A theft of property having a value lower than a certain small amount set forth in a statute, and considered to be a less serious class of crime. 

thieving

noun
  • The action of theft. 

adj
  • That thieves; that steals; inclined to steal 

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