Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
khanh luan » khanh thuan, doanh luan, hang luan
hieu manh » hieu nganh, dieu hanh, hien hanh
toan cong » tran cong, toan thong, doan cuong
van toan » van tuan, van tan, van thanh
cong dan » cong san, cong tan, huong dan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu xanh)) - khanh luan van toan cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - khanh luan van toan cong dan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - khanh luan van toan cong dan ((toan tap) or (toan ban))*.