Try searching from Oslo (Norway) on CX site.

Couple weeks ago did a search:

Oslo-X-LHR-HKG-LHR-X-Oslo was approx. HK$14-15K in I class

Oslo-X-LHR-HKG-Syd-HKG-LHR-X-Oslo was approx. HK$20-21K in I class... effectively an extra 6K in business class from Hong Kong to Sydney...

Both ways stopover allowed in HKG...

Another good resource on FlyerTalk is the premium fare deals section where there are a lot more premium deals:

http://www.flyertalk.com/forum/searc...6600&query=HKG

Try searching HKG in there a lot comes up...