Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
deals credit » dealer credit, des credit, dual credit
equal credit » dual credit, equity credit, rural credit
trading cost » trading costs, training cost, trading case
cost coping » post coping, port coping, cost computing
coping shu » cong shu
yala » ayala, yale, ala

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: lang yanling yala ((deals credit) OR (equal credit)) trading cost coping shu ;~.
• Adding a wildcard symbol may retrieve word variants: lang yanling yala ((deals credit) or (equal credit)) trading cost coping shu ;*.