Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
chang wong » chang won, change long, change hong
liang sun » liang dan, liang tan, wing sun
gan guan » yan guan, quan guan, fan guon
wong siu » wong shiu, kong siu, wong sau
dong di » dong sin
yang yi » yang xi, yang jui

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((liang sun) OR (dong di)) ((yang guang) OR (gan guan)) ((yang di) OR (yang yi)) chang wong siu ;~".
• Adding a wildcard symbol may retrieve word variants: ((liang sun) OR (dong di)) ((yang guang) OR (gan guan)) ((yang di) OR (yang yi)) chang wong siu ;*.