Perhaps you should try some spelling variations:
jane chen » jean chen, jie chen, kang chen
yong minh » gong min, jong min, song min
sang minh » kang minah, anh minh, song min
plan von » planes von, man von, plan via
von jane » von jan, von jale, von janine
wang » wan
shin » skin, sein, thin

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 wing) OR lang) plan von jane chen ((yong minh) OR (sang minh)) song shin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or wing) or lang) plan von jane chen ((yong minh) OR (sang minh)) song shin ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or wing) or lang) plan von jane chen ((yong minh) OR (sang minh)) song shin ;*.