Perhaps you should try some spelling variations:
training risk » trading risk, training crisis, defining risk
training cost » training costs, training course, training courses
dual credit » rural credit, deals credit, equal credit
dong yang » dong hoang, wang yang, yang yang
yang a » yang ka, yang _, yang 8
a dual » _ dual
cong » congo, long, hong

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

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