Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yuan » fang yuan, yan yuan, wang yuhan
shang hai » shang kai, dang hai, chang ha
zhong zhi » zhang zhi, hong ghi, zhong tai
wang lin » wang li, wang qin, yang lin
yang yun » yang jun, tang yun, yang yue
yang yi » yang di, yang xi, yang jui

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 lin ((yang yuan) OR (yang yun)) wang yang yi ((shang hai) OR (zhong zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang lin ((yang yuan) OR (yang yun)) wang yang yi ((shang hai) or (zhong zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang lin ((yang yuan) OR (yang yun)) wang yang yi ((shang hai) or (zhong zhi)) ;*.