Perhaps you should try some spelling variations:
standing cost » standing out, staffing costs, planning cost
total credit » formal credit, rural credit
trading cost » trading costs, training cost, trading case
dual credit » rural credit, deals credit, equal credit
coping shu » cong shu
wang yang » wang yan, wang liang, wang yanling
yang yala » yang yang, yang yao, yang all

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yala ((dual credit) OR (total credit)) ((standing cost) OR (trading cost)) coping shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yala ((dual credit) or (total credit)) ((standing cost) OR (trading cost)) coping shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang yala ((dual credit) or (total credit)) ((standing cost) OR (trading cost)) coping shu ;*.