Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung did » hyoung il
human gene » human genome, human gender, human bone
did human » und human, did roman, ed human
hong ghi » zhong zhi, hong g, hong hai
yang xi » yang jui
yang yi » yang jui

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 did human gene ((yang di) or (((yang xi) or (yang yi)))) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang hyoung did human gene ((yang di) OR (((yang xi) OR (yang yi)))) hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: lang hyoung did human gene ((yang di) or (((yang xi) or (yang yi)))) hong ghi ;*.