Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
cua tong » cua cong, cua dong, cua nong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cao » toan ban, toan tap

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: toc thieu xanh - ((hanh tranh) OR (hanh trinh)) cua tong ((cong tan) OR (cong tac)) toan cao~.
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - ((hanh tranh) or (hanh trinh)) cua tong ((cong tan) or (cong tac)) toan cao*.