Perhaps you should try some spelling variations:
credit trading » credit training, credit rating, credit standing
trading risk » trading case, trading cost, sharing risk
hua credit » dual credit, a credit, ida credit
dong yang » dong hoang, wang yang, yang yang
risk cong » risk coping, risk among
dong nan » dong sin, dong bin, dong cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong nan) OR (dong yang)) ya hua credit trading risk cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) OR (dong yang)) ya hua credit trading risk cong shu ;*".