Perhaps you should try some spelling variations:
training risk » trading risk, training crisis, defining risk
trading cost » training cost, trading case
dual credit » rural credit, deals credit, equal credit
dong yang » dong hoang, wang yang, yang yang
yang y » yang yi, yang _, yang 8
y dual » _ dual, a dual, 3 dual

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 y dual credit ((((training risk) or (trading cost))) or (trading costs)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang y dual credit ((((training risk) OR (trading cost))) OR (trading costs)) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong yang y dual credit ((((training risk) or (trading cost))) or (trading costs)) cong shu ;*.