Perhaps you should try some spelling variations:
credit trading » credit training, credit rating, credit standing
wang liang » wang yang
liang yao » yang yao, gang yao, liang dan
du credit » de credit, 2 credit
curse how » care how, curse nor
case how » case h
else how » elite how, geese how, else do

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 yao du credit trading ((((case how) OR (curse how))) OR (else how)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yao du credit trading ((((case how) OR (curse how))) or (else how)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yao du credit trading ((((case how) OR (curse how))) or (else how)) shu ;*.