Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
chin hong » china hong, chin chang, china long
das clan » das bilan, das land, das cern
hsu chin » hsu bin, hsu shi
tan yong » tan hong, tan kong, tan yang
yong yue » wong yue, yang yue, young yun
yan tan » tan tan, yan clan, yan guan

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 ((((yan tan) OR (das clan))) OR (yang guang)) hsu chin hong tan yong yue ;~.
• Adding a wildcard symbol may retrieve word variants: lang ((((yan tan) or (das clan))) or (yang guang)) hsu chin hong tan yong yue ;*.