Perhaps you should try some spelling variations:
wang liang » wang yang
liang sun » liang dan, liang tan, wing sun
zhong tai » hong tan, hong hai
zhong zhi » zhang zhi, hong ghi
oil chad » oil coal
wong yue » wang yue, hong yu
oil can » oil cake, oil coal
tang » tan, lang, yang

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 liang sun ((oil can) OR (oil chad)) tang li ((((zhong tai) OR (zhong zhi))) OR (wong yue)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang sun ((oil can) or (oil chad)) tang li ((((zhong tai) OR (zhong zhi))) or (wong yue)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang sun ((oil can) or (oil chad)) tang li ((((zhong tai) OR (zhong zhi))) or (wong yue)) ;*.