Perhaps you should try some spelling variations:
fang yuan » wang yuhan, wang yan, meng yuan
lang yan » wang yan, wang yang, zhang yan
yau yung » au yong, yap yun
dan yang » daun yang, tan yang, wang 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

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