Perhaps you should try some spelling variations:
chang boon » chang soon, cheng boon, chang won
boon siong » soon siong, boon chong
lang wang » hong wang, ping wang, yan wang
lang lang » ylang ylang
han chang » huang chang, than change, can change
siong yue » wong yue, siow yue, song yun
yang xi » yang yi, yang jui

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang wang) OR (lang lang)) ((yang di) OR (yang xi)) han chang boon siong yue ;~.
• Adding a wildcard symbol may retrieve word variants: ((lang wang) or (lang lang)) ((yang di) or (yang xi)) han chang boon siong yue ;*.