Perhaps you should try some spelling variations:
gong meng » gong gang
yuan kang » yuan wang, yuan chang, chan kang
kang yang » wang yang, yang yang, kang young
yang yuan » fang yuan, yan yuan, yang yun
gong min » jong min, song min, song ming
kang hay » kang han, dang hai, kang tae
eang hay » dang hai, kang han

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: gang ((gong meng) OR (gong min)) yuan kang yang yuan ((kang hay) OR (eang hay)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "gang ((gong meng) OR (gong min)) yuan kang yang yuan ((kang hay) or (eang hay)) ;~".
• Adding a wildcard symbol may retrieve word variants: gang ((gong meng) OR (gong min)) yuan kang yang yuan ((kang hay) or (eang hay)) ;*.