Perhaps you should try some spelling variations:
trading volumes » trading volume, trade volumes
equal credit » equity credit, rural credit, total credit
volumes cong » volume one, volumes book
dual credit » rural credit, deals credit, du credit
wang yong » wang yang, wang hyoung, wang yan
dong » doing, long, done

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong sin) or (wang yong)) a ((dual credit) OR (equal credit)) trading volumes cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sin) OR (wang yong)) a ((dual credit) OR (equal credit)) trading volumes cong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sin) or (wang yong)) a ((dual credit) OR (equal credit)) trading volumes cong shu ;*".