Perhaps you should try some spelling variations:
equity credit » equal credit, liquidity credit
trading cost » trading costs, training cost, trading case
dual credit » rural credit, deals credit, equal credit
cost coping » post coping, port coping, cost computing
coping shu » cong shu
wang yang » wang yan, wang liang, wang yanling
yang yala » yang yang, yang yao, yang all

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yala ((dual credit) or (equity credit)) trading cost coping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yala ((dual credit) OR (equity credit)) trading cost coping shu ;*.