Perhaps you should try some spelling variations:
rates changed » rate changes, rate change, fate changed
changed post » change cost, changed east, changed pt
wing yin » ming yi, fong yin, ping yi
yin pang » yin fang, yin hang, yin peng
pang jun » yang jui
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.

• Performing a fuzzy search may retrieve terms with similar spellings: wing yin pang jun rates changed post ((wong sau) or (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yin pang jun rates changed post ((wong sau) OR (wong siu)) ;*.