Perhaps you should try some spelling variations:
training course » training courses
training visit » training crisis, training asia, training vet
rural credits » rural credit, total credits
hong shu » cong shu, tong shui, wong shiu
yang 8 » yang _
yan 8 » yan _, yan 4
wang » wing, wan, lang

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: wang ((yan 8) OR (yang 8)) rural credits ((training visit) OR (training course)) hong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan 8) OR (yang 8)) rural credits ((training visit) or (training course)) hong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan 8) OR (yang 8)) rural credits ((training visit) or (training course)) hong shu ;*.