Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
khong cong » khong cang, chong cong, khong con
thong cong » trong cong, tong cong, thong thong
hanh hang » thanh hang, hang hang, hanh han
hang hoac » hang hoa, hang khoa, nang hoc
ho chieu » theo chieu, hoc thieu, mot chieu
danh bao » doanh bao, danh bat, danh bac
dan bao » van bao, dam bao, da bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh hang hoac ((khong cong) or (thong cong)) tac ((danh bao) or (dan bao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh hang hoac ((khong cong) OR (thong cong)) tac ((danh bao) OR (dan bao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh hang hoac ((khong cong) or (thong cong)) tac ((danh bao) or (dan bao))*.