Perhaps you should try some spelling variations:
changed john » changed our, changed post, changed rome
change john » chasse john, change japan, channon john
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
yang luis » yang jui, san luis, jan luis
wong sau » wong sam, wong siu, wong shiu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yang luis rene ((changed john) OR (change john)) wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang luis rene ((changed john) OR (change john)) wong sau ;*".