Perhaps you should try some spelling variations:
lang wang » lang lang, hong wang, ping wang
wang yong » wang yang, wang hyoung, wang yan
hua irene » hua ren
irene yan » irene a, ren yan
yong hua » dong hua, ying hua, wang hua
wong sau » wong sam, wong siu, wong shiu
yan jiu » yang jie, yang jin, pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang wang yong hua irene yan jiu ((wong sau) or (kong (sar OR sara))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang wang yong hua irene yan jiu ((wong sau) OR (kong (sar OR sara))) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang wang yong hua irene yan jiu ((wong sau) or (kong (sar OR sara))) ;".
• Adding a wildcard symbol may retrieve word variants: lang wang yong hua irene yan jiu ((wong sau) or (kong (sar OR sara))) ;*.