Perhaps you should try some spelling variations:
chuan wang » chen wang, yuan wang
chuan bang » chua beng
thang long » change long
long chain » long chemin, long grain, long han
yan thang » yan zhang, xuan thang, yuan chang
dong nan » dong yang, dong sin, dong bin
dong di » dong sin

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: ((dong nan) OR (dong di)) say ((chuan wang) OR (chuan bang)) yan thang long chain ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) or (dong di)) say ((chuan wang) OR (chuan bang)) yan thang long chain ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong nan) or (dong di)) say ((chuan wang) OR (chuan bang)) yan thang long chain ;*.