Perhaps you should try some spelling variations:
training crisis » training costs, learning crisis, turning crisis
trading case » trading costs, trade case
dual credit » rural credit, deals credit, equal credit
hua credit » a credit, du credit, ida credit
yang yang » wang yang, wang yan
hong shu » cong shu, tong shui, wong shiu
yang ya » yang yao, yang yi, yang ka

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang ya ((hua credit) OR (dual credit)) ((trading case) or (training crisis)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ya ((hua credit) OR (dual credit)) ((trading case) OR (training crisis)) hong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang ya ((hua credit) OR (dual credit)) ((trading case) or (training crisis)) hong shu ;".
• Adding a wildcard symbol may retrieve word variants: yang yang ya ((hua credit) OR (dual credit)) ((trading case) or (training crisis)) hong shu ;*.