Perhaps you should try some spelling variations:
rene changed » rates changed, rate changes, have changed
changed john » change john, changed our, changed post
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
yang luis » yang jui, san luis, jan luis
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yang luis rene changed john ((wong sau) OR (wong siu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yang luis rene changed john ((wong sau) OR (wong siu)) ;*.