Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, hanh mang, hanh tung
cua trong » cua truong, cua trung, qua trong
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
tac doan » tap doan, tan doan, thai doan
doan dau » doan dieu, phan dau, doan va

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 tang) or (anh tang)) cua trong cong tac doan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh tang) OR (anh tang)) cua trong cong tac doan dau*.