Perhaps you should try some spelling variations:
training volume » trading volume, trading volumes, planning volume
credit training » credit trading, credit rationing, credit rating
volume zone » volume one, volume notes
wang yong » wang yang, wang yan, wang shiyong
zone shu » zone ch, zone sez
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) OR (wang hyoung)))) a rural credit training volume zone shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sin) OR (((wang yong) OR (wang hyoung)))) a rural credit training volume zone shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sin) or (((wang yong) OR (wang hyoung)))) a rural credit training volume zone shu ;*".