Perhaps you should try some spelling variations:
trading risk » trading case, trading room, funding risk
dual credit » rural credit, deals credit, equal credit
hua credit » a credit, du credit, ida credit
risk cong » risk coping, risk among, risk along
dong nan » dong yang, dong sin, dong bin
nan ya » nan yan, nana yaa

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 ((hua credit) OR (dual credit)) trading risk cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: dong nan ya ((hua credit) OR (dual credit)) trading risk cong shu ;*.