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
wong shiu » wong siu, cong shu, song shin
hong shu » cong shu, tong shui, hong seo
4 rural » a rural, 2 rural
yan 4 » yang 4, yan _, ban 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 4 rural credits ((training visit) OR (training course)) ((hong shu) OR (wong shiu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan 4 rural credits ((training visit) or (training course)) ((hong shu) OR (wong shiu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan 4 rural credits ((training visit) or (training course)) ((hong shu) OR (wong shiu)) ;*.