Perhaps you should try some spelling variations:
cong doanh » cong danh, cong doan, dong doanh
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
dong cong » duong cong, dung cong, dang cong
doanh van » doan van, doanh va, doanh ban
hanh han » hanh nhan, hanh phan, hanh san
cua dong » chua dong, cua cong, cua dang
han cua » hang cua, nhan cua, than cua

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) OR (hoc thieu)) sach - hanh han cua dong cong doanh van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) sach - hanh han cua dong cong doanh van ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) sach - hanh han cua dong cong doanh van ban*.