Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dung tong » dung trong, dung thong, dung cong
tong luan » tang luan, dung luan, hang luan
luan phan » luan van, luan hoan
theo yeu » theo tieu, thiet yeu, theo chu
cua dung » cua dang, cua dong, qua dung

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 yeu) OR (theo chieu)) xanh - hanh tranh cua dung tong luan phan tu~.
• Adding a wildcard symbol may retrieve word variants: ((theo yeu) or (theo chieu)) xanh - hanh tranh cua dung tong luan phan tu*.