Perhaps you should try some spelling variations:
wang yong » wang hyoung, wang yan, wang shiyong
zhong tai » hong tan, zhong zhi
wang yang » wang yan, wang liang, wang yanling
yang yun » yang jun, tang yun, yang yue
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
hong hai » shang hai, dang hai, hong tan

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 yong) OR (wang yang)) yang yun ((tan yang) OR (tan yong)) di ((hong hai) OR (zhong tai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yong) or (wang yang)) yang yun ((tan yang) OR (tan yong)) di ((hong hai) or (zhong tai)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yong) or (wang yang)) yang yun ((tan yang) OR (tan yong)) di ((hong hai) or (zhong tai)) ;*.