Perhaps you should try some spelling variations:
taking costs » trading costs, banking costs, timing costs
risk taking » risk sharing
dong sind » dong sin, dong bin, dong ping
wing tan » wing ian, liang tan, hong tan
how slum » how slow, how sub
how sun » how sub, how sound
ka a » kai a, k a, 1a a
a a » a la

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wing tan) or (dong sind)) ((ka a) or (a a)) risk taking costs ((how slum) or (how sun)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wing tan) OR (dong sind)) ((ka a) OR (a a)) risk taking costs ((how slum) OR (how sun)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wing tan) or (dong sind)) ((ka a) or (a a)) risk taking costs ((how slum) or (how sun)) ;*.