Perhaps you should try some spelling variations:
training visit » training crisis, training asia, training vet
trading case » trading costs, trade case
hua credit » dual credit, a credit, du credit
yang jui » yang judy, yang di, yang yi
hong shu » cong shu, tong shui, wong shiu
yang xi » yang di, 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 xi) OR (yang jui)) hua credit ((trading case) or (training visit)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang xi) OR (yang jui)) hua credit ((trading case) OR (training visit)) hong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yang xi) OR (yang jui)) hua credit ((trading case) or (training visit)) hong shu ;".
• Adding a wildcard symbol may retrieve word variants: dong ((yang xi) OR (yang jui)) hua credit ((trading case) or (training visit)) hong shu ;*.