Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
zhang hari » shang hai, zhang han, zhang hui
gain yang » dan yang, daun yang, tan yang
zhang dai » zhang fan, zhang wei, zhang yan
yang yun » yang jun, tang yun, yang yue
yan yun » yan yuan, yan kun, yap yun
yang xi » yang di, yang yi, yang jui

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 ((yan yun) OR (yang yun)) gain yang xi ((zhang hari) OR (zhang dai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang hyoung ((yan yun) or (yang yun)) gain yang xi ((zhang hari) OR (zhang dai)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang hyoung ((yan yun) or (yang yun)) gain yang xi ((zhang hari) OR (zhang dai)) ;*.