Perhaps you should try some spelling variations:
lang xiaodong » wang xiaodong, wang xianodong, lin xiaodong
huang chang » huang cheng, hoong chang, yuan chang
huang yang » huang ying, wang yang, yang yang
fang ri » fang wei, fang xia
viet » view, diet, vier
dang » dan, wang, dans
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 xiaodong ((huang chang) OR (huang yang)) han ((fang ri) OR (vang viet)) dang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang xiaodong ((huang chang) OR (huang yang)) han ((fang ri) or (vang viet)) dang hai ;~".
• Adding a wildcard symbol may retrieve word variants: lang xiaodong ((huang chang) OR (huang yang)) han ((fang ri) or (vang viet)) dang hai ;*.