Perhaps you should try some spelling variations:
rural credits » rural credit, total credits
costs keeping » cows keeping, fronts keeping, worth keeping
dual credit » rural credit, deals credit, equal credit
keeping shu » keeping your, keeping them, keeping what
yang yala » yang yang, yang all, yang dali
yang yao » yang yang, wang yan, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yang yala) OR (yang yao)) ((dual credit) or (rural credits)) trading costs keeping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang yala) OR (yang yao)) ((dual credit) OR (rural credits)) trading costs keeping shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yang yala) OR (yang yao)) ((dual credit) or (rural credits)) trading costs keeping shu ;*".