Perhaps you should try some spelling variations:
trading risk » trading case, funding risk, making risk
trading room » trading cost, making room
dual credit » rural credit, deals credit, equal credit
dong nan » dong yang, dong sin, dong bin
ya dual » a dual, via dual
nan ya » nan yan, nana yaa
cong » congo, long, hong

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "dong nan ya dual credit ((trading risk) OR (trading room)) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: dong nan ya dual credit ((trading risk) OR (trading room)) cong shu ;*.