Perhaps you should try some spelling variations:
gang dong » gang gong, gang sung, jeng dong
yan yuan » yan guan, fang yuan, yan clan
gan guan » yan guan, quan guan, fan guon
wai yan » wang yan, wei yang
nan yan » nan ya, wang yan, qian yan
lu gang » liu gang, li gang, xu gang
sin » sign, sind, skin

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: ((wai yan) OR (dong di)) ((((yan yuan) OR (nan yan))) OR (gan guan)) ming lu gang dong sin ;~.
• Adding a wildcard symbol may retrieve word variants: ((wai yan) or (dong di)) ((((yan yuan) or (nan yan))) or (gan guan)) ming lu gang dong sin ;*.