Perhaps you should try some spelling variations:
training cost » training costs, training course, training courses
total credit » formal credit, rural credit
trading risk » trading case, trading room, funding risk
zhang yan » zhang fan, zhang jian, wang yan
lang yan » wang yan, wang yang, yang yang
y total » _ total, a total, 2 total
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: ((lang yan) or (zhang yan)) y total credit ((trading risk) or (training cost)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yan) OR (zhang yan)) y total credit ((trading risk) OR (training cost)) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: ((lang yan) or (zhang yan)) y total credit ((trading risk) or (training cost)) cong shu ;*.