Perhaps you should try some spelling variations:
boost during » roosts during, books during, boom during
cost during » crust during, west during, roosts during
risk wong » risk among, risk along, risk work
wing ran » wing ian, wing tan
wing sun » liang sun, cong sun, nina sun
ying end » big end
wong siu » wong shiu, kong siu, wong sau

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 ran) OR (wing sun)) ying end ((cost during) OR (boost during)) risk wong siu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wing ran) or (wing sun)) ying end ((cost during) or (boost during)) risk wong siu ;*.