Perhaps you should try some spelling variations:
equal credit » dual credit, equity credit, rural credit
costs among » costs along, customs among
wang jiang » wang liang, wang jing, wang yang
hua credit » dual credit, a credit, du credit
among shu » cong shu, among eu, among sex
jiang yi » jiang ye, yang yi, jia yi

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 jiang yi ((hua credit) OR (equal credit)) trading costs among shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang jiang yi ((hua credit) or (equal credit)) trading costs among shu ;*.