Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
tuan china » wuhan china, can china, taiwan china
than china » han china, wuhan china, can china
tan chia » can china, dan china, han china
kang hay » eang hay, kang han, dang hai
yang xi » yang di, yang yi, yang jui
xi kang » jin kang, xi zhang

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 hyoung ((((tan chia) OR (tuan china))) OR (than china)) du yang xi kang hay ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang hyoung ((((tan chia) OR (tuan china))) or (than china)) du yang xi kang hay ;~".
• Adding a wildcard symbol may retrieve word variants: lang hyoung ((((tan chia) OR (tuan china))) or (than china)) du yang xi kang hay ;*.