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 bin » dong sin, dong di, dann bin
ya dual » a dual, via dual
bin ya » bin da, bin ja

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

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