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 nan » dong yang, dong bin, dong cao
ya equal » can equal, _ equal, 6 equal
sin » sign, sind, skin
cong » congo, long, hong

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

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