Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang luan » tang luan, hang luan, bang luan
luan ban » luan van, luan san, luan han
ban cong » bang cong, van cong, phan cong
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: theo ((chiet tach) OR (chieu sach)) - hanh mang luan ban cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (chieu sach)) - hanh mang luan ban cong dan ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) OR (chieu sach)) - hanh mang luan ban cong dan ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) OR (chieu sach)) - hanh mang luan ban cong dan ((toan tap) or (toan ban))*.