Perhaps you should try some spelling variations:
training visit » training cost, training test
trading risk » trading case, trading cost, sharing risk
hua credit » dual credit, a credit, ida credit
dong yang » dong hoang, wang yang, yang yang
hong shu » hong seo, hong yu, hong ghi
yang yi » yang di, yang xi, yang jui

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