Perhaps you should try some spelling variations:
you liang » you xian, you liangzhi
liang wei » xiang wei, zhang wei, wang wei
post data » post natal, test data, best data
cost data » test data
want you » what you
yong sau » wong sau, kong sar, yong cai
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: want you liang wei ((post data) OR (cost data)) jim ((yong sau) OR (wong sam)) ;~.
• Adding a wildcard symbol may retrieve word variants: want you liang wei ((post data) or (cost data)) jim ((yong sau) or (wong sam)) ;*.