Perhaps you should try some spelling variations:
rural credits » rural credit, total credits
trading risk » trading case, trading room, funding risk
dual credit » rural credit, deals credit, equal credit
dong yang » dong hoang, yang yang, dan yang
wang yang » wang yan, wang liang, wang yanling
risk cong » risk coping, risk among, risk along

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

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