Perhaps you should try some spelling variations:
yong zhang » yong phang, kong hang, yan zhang
zhang wang » zhang zhang, zhang fan, zhang yan
zhang fang » zhang fan, zhang zhang, zhang yan
wang yong » wang yang, wang hyoung, wang yan
zhang lin » zhang xin, zhang jin, zhang li
young sae » young state, young male, young age
lin wu » lin xu

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: wang yong zhang lin wu ((zhang wang) OR (zhang fang)) ((hyoung sau) OR (young sae)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong zhang lin wu ((zhang wang) or (zhang fang)) ((hyoung sau) OR (young sae)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong zhang lin wu ((zhang wang) or (zhang fang)) ((hyoung sau) OR (young sae)) ;*.