Perhaps you should try some spelling variations:
risk trading » risk training, risk taking, risk rating
trading cost » trading costs, training cost, trading case
housing shu » housing south, housing study, housing asia
dong skin » dong sin, dong bin, dof skin
ya a » a a, y a, ye a
ka a » kai a, a a, k a
wang » wan, lang

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

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