Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
hanh han » hanh nhan, hanh phan, anh han
hanh san » thanh san, khach san, thanh son
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
he dung » he dong, te dung, nghe dung

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 mang) or (((hanh han) OR (hanh san)))) he dung cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh mang) OR (((hanh han) OR (hanh san)))) he dung cong tan than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh mang) or (((hanh han) OR (hanh san)))) he dung cong tan than cap*".