Perhaps you should try some spelling variations:
huang chang » huang cheng, hoong chang, huang yang
huang ying » huang jing, huang ting, huang yang
young john » kong john, wong john, young jean
china dan » china den, china data, china des
yang john » king john, yang jin, yang jun
bonn ein » bonn mein, bonn die, kann ein

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: ((huang chang) OR (huang ying)) can china dan ((yang john) OR (young john)) bonn ein ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((huang chang) or (huang ying)) can china dan ((yang john) OR (young john)) bonn ein ;~".
• Adding a wildcard symbol may retrieve word variants: ((huang chang) or (huang ying)) can china dan ((yang john) OR (young john)) bonn ein ;*.