Perhaps you should try some spelling variations:
yanling yang » yang yang, ying yang
equal credit » equity credit, rural credit, total credit
reading post » reading part, reading about, reading first
dual credit » rural credit, deals credit, du credit
coping shu » cong shu
wang » wing, wan, lang

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 yanling yang ((dual credit) OR (equal credit)) reading post coping shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling yang ((dual credit) or (equal credit)) reading post coping shu ;*.