Perhaps you should try some spelling variations:
training risk » trading risk, training visit, training cost
equal credit » rural credit, total credit, local credit
dual credit » rural credit, rural credits, total credit
wang liang » wang yang
liang y » jiang ye, jiang yi, liang li
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: wang liang y ((dual credit) or (equal credit)) ((training risk) or (trading costs)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang y ((dual credit) OR (equal credit)) ((training risk) OR (trading costs)) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: wang liang y ((dual credit) or (equal credit)) ((training risk) or (trading costs)) cong shu ;*.