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
wong shiu » wong siu, cong shu, song shin
wing ran » wing ian, wing tan, wing sun
ran ying » fan ying, tan ying, jin ying
ying end » big end

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