Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
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: hoc thieu xanh - hanh tranh cua dong ((huong dan) OR (cong tan)) ((toan cau) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh cua dong ((huong dan) or (cong tan)) ((toan cau) or (toan tap))*.