Perhaps you should try some spelling variations:
rates changed » rate changes, rate change, fate changed
wing yanling » wang yanling, wang yangming
yanling yang » yang yang, ying yang
have changed » has changed, a changed
yang jui » yang judy, yang di, yang xi
wong sau » wong sam, wong shiu, wong lai
wong siu » wong shiu, kong siu, wong siew

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 yanling yang jui ((rates changed) OR (have changed)) post ((wong sau) OR (wong siu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wing yanling yang jui ((rates changed) or (have changed)) post ((wong sau) or (wong siu)) ;*.