Perhaps you should try some spelling variations:
training risk » trading risk, training crisis, defining risk
training cost » training costs, training course, training courses
equal credit » dual credit, equity credit, rural credit
dong hoang » hong hong
hoang y » hoang sy, hoang _, hoang h
y equal » _ equal, 6 equal, e equals
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 hoang y equal credit ((training risk) OR (training cost)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: dong hoang y equal credit ((training risk) or (training cost)) cong shu ;*.