Perhaps you should try some spelling variations:
gain yang » dan yang, daun yang, yin yang
yang yun » yang jun, tang yun, yang yue
tan yang » dan yang, tan ying, tan yong
gai gang » ngai hang, ii gang, i gang
gang hai » dang hai, shang hai, eang hay
wan yan » wang yan, nan yan, wai yan
yan kun » yan guan, yan yuan

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: wan yan ((yan kun) OR (yang yun)) ((gain yang) OR (tan yang)) gai gang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan ((yan kun) or (yang yun)) ((gain yang) or (tan yang)) gai gang hai ;*.