Perhaps you should try some spelling variations:
training costs » trading costs, training courses, training course
training risk » trading risk, training crisis, defining risk
equal credit » equity credit, rural credit, total credit
dual credit » rural credit, deals credit, du credit
dong hoang » hong hong
hoang y » hoang sy, hoang _, hoang h

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

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