fencing vs vagueness

fencing

noun
  • Receiving and buying of stolen goods. 

  • The art or sport of duelling with swords, especially with the 17th- to 18th-century European dueling swords and the practice weapons descended from them (sport fencing). 

  • Material used to make fences, fences used as barriers or an enclosure. 

vagueness

noun
  • Something which is vague, or an instance or example of vagueness. 

  • The condition of being unclear; vague. 

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