Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
nhung cong » dung cong, thong cong, hang cong
doan tien » doan thien, doanh tien, toan tien
trinh thi » trinh tai, dinh thi, trinh tu
trinh he » trinh han, trinh hoa, trinh ky
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
tinh he » hinh he, tinh ha, tich he

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 tien thanh - canh ((tinh he) OR (((trinh he) OR (trinh thi)))) nhung cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doan tien thanh - canh ((tinh he) or (((trinh he) OR (trinh thi)))) nhung cong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: doan tien thanh - canh ((tinh he) or (((trinh he) OR (trinh thi)))) nhung cong dan toan cau*.