Perhaps you should try some spelling variations:
books during » blooms during, banks during, boost during
cost during » boost during, crust during, west during
boom during » blooms during, boost during, bim 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 (((books during) OR (boom during)))) risk wong shiu ;~.
• Adding a wildcard symbol may retrieve word variants: wing ran ying end ((cost during) or (((books during) or (boom during)))) risk wong shiu ;*.