Perhaps you should try some spelling variations:
taking costs » trading costs, banking costs, timing costs
risk taking » risk sharing
costs wong » costs along, costs among, costs longer
wong siu » wong shiu, kong siu, wong sau
wan yan » wang yan, nan yan, wai yan
kai a » kai fa
ka a » a a, k a, 1a 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: ((wan yan) OR (dof skin)) ((ka a) OR (kai a)) risk taking costs wong siu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (dof skin)) ((ka a) OR (kai a)) risk taking costs wong siu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (dof skin)) ((ka a) OR (kai a)) risk taking costs wong siu ;*.