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
wing yan » wang yan, wing ian, wing tan
hong shu » cong shu, tong shui, wong shiu
4 rural » a rural, 2 rural
yan 4 » yang 4, yan _, ban 4

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan 4 rural credits ((training visit) OR (training course)) hong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wing yan 4 rural credits ((training visit) OR (training course)) hong shu ;*.