Perhaps you should try some spelling variations:
you liang » you xian, you liangzhi
liang iii » klang iii, liang li, liang wei
best data » test data, best damn, post data
cost data » test data
wong shiu » wong siu, cong shu, song shin
wang you » want you, wang yong, chang you
wong sam » wong sau, wong lai, kong sar

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: wang you liang iii ((best data) OR (cost data)) kie ((wong shiu) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang you liang iii ((best data) OR (cost data)) kie ((wong shiu) or (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang you liang iii ((best data) OR (cost data)) kie ((wong shiu) or (wong sam)) ;*.