Perhaps you should try some spelling variations:
training cost » training costs, training course, training courses
risk training » risk taking, bank training, risk planning
zhang zhi » zhong zhi, zhang wei, zhang dai
wing yan » wang yan, wing ian, wing tan
dong bin » dong sin, dong di, dann bin
get a » get _
ya a » a a, y a, ye a

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 bin)) ((ya a) OR (get a)) risk training cost ((zhang zhi) OR (wang zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing yan) or (dong bin)) ((ya a) or (get a)) risk training cost ((zhang zhi) OR (wang zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wing yan) or (dong bin)) ((ya a) or (get a)) risk training cost ((zhang zhi) OR (wang zhi)) ;*.