Perhaps you should try some spelling variations:
total credits » total credit, tax credits
trading risk » trading case, trading room, funding risk
risk coping » risk pooling
dong hoang » hong hong
hua credit » dual credit, a credit, du credit
coping shu » cong shu
wang yang » wang yan, wang liang, wang yanling

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) or (dong hoang)) ya ((hua credit) or (total credits)) trading risk coping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (dong hoang)) ya ((hua credit) OR (total credits)) trading risk coping shu ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (dong hoang)) ya ((hua credit) or (total credits)) trading risk coping shu ;*.