Perhaps you should try some spelling variations:
training costs » trading costs, training courses, training course
risk training » risk taking, bank training, risk planning
dong skin » dong sin, dong bin, dof skin
wong shiu » cong shu, song shin, wong sau
wong siu » kong siu, wong sau, wong siew
wan yan » wang yan, nan yan, wai yan
ka a » kai a, k a, 1a a
a a » a la

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan yan) or (dong skin)) ((ka a) or (a a)) risk training costs ((wong shiu) OR (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (dong skin)) ((ka a) OR (a a)) risk training costs ((wong shiu) OR (wong siu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (dong skin)) ((ka a) or (a a)) risk training costs ((wong shiu) OR (wong siu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (dong skin)) ((ka a) or (a a)) risk training costs ((wong shiu) OR (wong siu)) ;*.