Perhaps you should try some spelling variations:
luan chung » luan chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong tam » cong tac, cong tan, dong tam
cong nam » dong nam, uong nam, thong nam
toan ban » van ban

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: theo tieu xanh - hanh tang luan chung ((cong tam) OR (cong nam)) ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tang luan chung ((cong tam) or (cong nam)) ((toan tap) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tang luan chung ((cong tam) or (cong nam)) ((toan tap) OR (toan ban))*.