Perhaps you should try some spelling variations:
fang yuan » wang yuhan, wang yan, meng yuan
wang yang » wang yan, wang liang, wang yanling
lang yan » wang yan, zhang yan, yang yang
yang duc » yang du, sang duck, yang di
duc gang » duc dang, der gang, c gang
gang hai » dang hai, shang hai, eang hay
yap yun » yang yun, yau yung

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 yan ((yap yun) OR (fang yuan)) wang yang duc gang hai ;~.
• Adding a wildcard symbol may retrieve word variants: lang yan ((yap yun) or (fang yuan)) wang yang duc gang hai ;*.