Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yan clan » das clan, yan guan, yan yuan
thi hong » tan hong
tan wong » tan hong, tan kong, tan yong
wong yue » wang yue, hong yu
yan tan » tan tan, yan guan, yan wang
ii hong » kia hong, tin hong, kai hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((((yan tan) or (yan clan))) or (yang guang)) hsu ((ii hong) OR (thi hong)) tan wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((((yan tan) OR (yan clan))) OR (yang guang)) hsu ((ii hong) OR (thi hong)) tan wong yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((((yan tan) or (yan clan))) or (yang guang)) hsu ((ii hong) OR (thi hong)) tan wong yue ;*".