What are the best ways to redeem Business class seats to Vietnam using Qantas FF points?

I currently have about 200k QF points & thinking of travelling to Vietnam in Jan 2017.  What is my best chance of getting a business seat?  Thanks

If you know your dates, start looking now. I would look for availability with Malaysia Airlines through KL, Cathay through Hong Kong, or Qantas (and then Jetstar) through Singapore. Good luck!