Perhaps you should try some spelling variations:
lang yang » wang yang, yang yang, lang lang
song hong » song chong, hong hong, kong hong
kim song » kim young, kim eung
wong siu » wong shiu, kong siu, wong siew
wong sau » wong sam, wong shiu, wong lai
yang xi » yang jui
yang yi » yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yang ((((yang xi) or (yang yi))) or (yang di)) kim song hong ((wong siu) OR (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yang ((((yang xi) OR (yang yi))) OR (yang di)) kim song hong ((wong siu) OR (wong sau)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yang ((((yang xi) or (yang yi))) or (yang di)) kim song hong ((wong siu) OR (wong sau)) ;*".