Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong san » cong tac
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 trinh - hanh tang luan thong cong san ((toan cao) OR (((toan tap) OR (toan ban))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu trinh - hanh tang luan thong cong san ((toan cao) or (((toan tap) OR (toan ban))))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - hanh tang luan thong cong san ((toan cao) or (((toan tap) OR (toan ban))))*.