Perhaps you should try some spelling variations:
rural credits » total credits
standing cost » standing out, staffing costs, trading cost
cost coping » post coping, port coping, cost computing
coping shu » cong shu
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang ((rural credits) OR (rural credit)) standing cost coping shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang yang ((rural credits) OR (rural credit)) standing cost coping shu ;*.