Perhaps you should try some spelling variations:
huang yang » huang ying, huang chang, wang yang
jang yang » wang yang, yang yang, wang yong
gan guan » yan guan, quan guan, fan guon
xi zhang » li zhang, xiao zhang, bin zhang
yan gan » yan guan, yan clan, yan wang
xi kang » jin kang
wang » wing, wan, lang

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: wang yan gan guan ((jang yang) OR (huang yang)) ((xi kang) OR (xi zhang)) hay ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan gan guan ((jang yang) or (huang yang)) ((xi kang) or (xi zhang)) hay ;*.