Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan nang » luan van, van nang, luan san
cong dan » cong san, huong dan, cong tac
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap

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 luan nang ((((cong dan) or (cong dong))) or (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh tang luan nang ((((cong dan) OR (cong dong))) OR (cong tan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tang luan nang ((((cong dan) or (cong dong))) or (cong tan)) toan cao*.