Perhaps you should try some spelling variations:
luan chung » luan chinh
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
qua nhung » quan nhung, cua nhung, qua chung
cong van » cong vang, cong san, song van
van luan » van quan, van tuan, von luan
luan ban » luan van, luan san, luan han

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh tang ((luan chung) or (qua nhung)) cong van luan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh tang ((luan chung) OR (qua nhung)) cong van luan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tang ((luan chung) or (qua nhung)) cong van luan ban*.