Perhaps you should try some spelling variations:
hoong chang » hoong ang, huang chang, joon chang
boon chong » boon siong, joon chang
yuan wang » yuan kang, yuan chang, qian wang
wang yong » wang yang, wang hyoung, wang yan
yan wang » yang yang, qian wang, yan liang
yong shu » cong shu, tong shui, 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 ((yan wang) OR (yuan wang)) hua ((hoong chang) or (boon chong)) wang yong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan wang) OR (yuan wang)) hua ((hoong chang) OR (boon chong)) wang yong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan wang) OR (yuan wang)) hua ((hoong chang) or (boon chong)) wang yong shu ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan wang) OR (yuan wang)) hua ((hoong chang) or (boon chong)) wang yong shu ;*.