Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh ban » thanh ban, hang ban, hanh san
ban cua » ban quan
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh ban cua ((nhung cong) OR (thong cong)) san van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ban cua ((nhung cong) OR (thong cong)) san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ban cua ((nhung cong) OR (thong cong)) san van ban*.