Perhaps you should try some spelling variations:
standing cost » standing out, staffing costs, trading cost
dealer credit » deals credit, greater credit, better credit
dual credit » rural credit, deals credit, equal credit
cost congo » cost control
congo shu » cong shu
yang yao » yang yang, wang yan, yang yi
yao yang » yang yang

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

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