Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
gain huang » hsin huang
huang bin » huang lin, huang jing, huang ting
zhang hai » shang hai, zhang han, zhang hui
zhang dai » zhang fan, zhang wei, zhang yan
dean hua » dean a, tan hua, tuan hua
wang » wing, wan

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 OR lang) yan ((dean hua) OR (than china)) gain huang bin ((zhang hai) OR (zhang dai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) yan ((dean hua) or (than china)) gain huang bin ((zhang hai) OR (zhang dai)) ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or lang) yan ((dean hua) or (than china)) gain huang bin ((zhang hai) OR (zhang dai)) ;*.