Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
zhao zheng » zhao feng, hao zhang, zhao hong
gain yang » dan yang, daun yang, tan yang
yang zhao » yang yizhao, yang yao, feng zhao
zheng han » cheng han, zhang han, zheng alan
yan yuan » yan guan, fang yuan, nan yan
wang yue » wong yue, wang hua, wang yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang hyoung ((yan yuan) or (wang yue)) gain yang zhao zheng han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang hyoung ((yan yuan) OR (wang yue)) gain yang zhao zheng han ;*.