Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
qua dung » quang dung, su dung, qua song
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh trinh) or (hanh mang)) ((qua dung) or (cua dong)) cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trinh) OR (hanh mang)) ((qua dung) OR (cua dong)) cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trinh) or (hanh mang)) ((qua dung) or (cua dong)) cong tan tran cau*.