Perhaps you should try some spelling variations:
equal credit » dual credit, equity credit, rural credit
costs along » costs among, costs longer
wang liang » wang yang
hua credit » dual credit, a credit, du credit
along shu » along nhue, cong shu, along who
liang yi » jiang yi, liang li, liang ying

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