Perhaps you should try some spelling variations:
tranh chua » tranh cua, trinh chuan, tranh chap
tieu xanh » tieu danh, chieu xanh, dieu hanh
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong tan » cong tac, cong san, cong thanh
toan tai » toan tap, doanh tai, toan cao
toan ban » van 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: theo tieu xanh - canh tranh chua dong cong tan ((toan tai) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh tranh chua dong cong tan ((toan tai) or (toan ban))*.