Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
chuan kao » chuan dato, chuan fa
zhong tai » hong tan, zhong zhi
hua xiao » hu xiao, huang xiao, wu xiao
yang tin » yang jin, yang lin, yang jing
hong hai » shang hai, dang hai, hong tan
dean » dewan, jean, den

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 yang dean ((chuan kao) OR (hua xiao)) yang tin ((hong hai) OR (zhong tai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang dean ((chuan kao) or (hua xiao)) yang tin ((hong hai) OR (zhong tai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang dean ((chuan kao) or (hua xiao)) yang tin ((hong hai) OR (zhong tai)) ;*.