Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
doan thien » hoan thien, doan thi, toan thiet
hanh trinh » canh tranh, hanh chinh
he nhung » hee nhung, ve nhung, hien nhung
me nhung » ve nhung, ma nhung, my nhung
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban

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: doan thien thanh - hanh trinh ((he nhung) OR (me nhung)) cong dan ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: doan thien thanh - hanh trinh ((he nhung) or (me nhung)) cong dan ((toan cao) or (toan tap))*.