Perhaps you should try some spelling variations:
gain yang » dan yang, tan yang, yin yang
daun yang » dan yang, du yang, tan yang
lang yan » wang yan, wang yang, zhang yan
gan guan » yan guan, quan guan, fan guon
kang hay » eang hay, kang han, kang tae
yan gan » yan guan, yan clan, yan wang
hai » hadi, haji, hari

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 gan guan ((gain yang) OR (daun yang)) jui ((kang hay) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang yan gan guan ((gain yang) or (daun yang)) jui ((kang hay) or (dang hai)) ;*.