Perhaps you should try some spelling variations:
training costs » trading costs, training courses, training course
risk training » risk taking, bank training, risk planning
costs zhong » costs along, costs among
zhong zhi » zhang zhi, hong ghi, zhong tai
wing yan » wang yan, wing ian, wing tan
get a » get _
ya a » a a, y a, ye a
sin » sign, sind, skin

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: ((wing yan) OR (dong sin)) ((ya a) OR (get a)) risk training costs zhong zhi ;~.
• Adding a wildcard symbol may retrieve word variants: ((wing yan) or (dong sin)) ((ya a) or (get a)) risk training costs zhong zhi ;*.