Perhaps you should try some spelling variations:
chung ton » chung tong, chung mona, chung po
congo can » congo call, cong van, congo a
duong van » cong van, duong anh
qian yi » qian yan
yi fang » yin fang, yi gang, yi yang
a chung » lai chung, wai chung, a change
fang a » fang _, lang a, facing a

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: qian yi fang a chung ton kino ((congo can) OR (duong van)) ;~.
• Adding a wildcard symbol may retrieve word variants: qian yi fang a chung ton kino ((congo can) or (duong van)) ;*.