Perhaps you should try some spelling variations:
credit trading » credit training, credit rating, credit standing
trading risk » trading case, trading room, funding risk
hua credit » dual credit, a credit, du credit
risk cong » risk coping, risk among, risk along
nan yan » wang yan, qian yan, dan yang
nan ya » nana yaa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((nan ya) OR (nan yan)) hua credit trading risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: dong ((nan ya) or (nan yan)) hua credit trading risk cong shu ;*.