Perhaps you should try some spelling variations:
trading cost » trading costs, training cost, trading case
risk trading » risk taking, risk rating, right trading
cost housing » poor housing
housing shu » housing study
dong skin » dong sin, dong bin
a risk » _ risk
ya a » a a, ka 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 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 risk trading cost housing shu ;.
• Adding a wildcard symbol may retrieve word variants: (((wang or wing) yan) or (dong skin)) ya a risk trading cost housing shu ;*.