Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
chinh quan » chinh luan, chinh quyen, chinh ngan
thong cong » trong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dung cong
ban cau » bang cau, ban can, van cau
ban dan » ban hang, ban hanh, ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh chinh quan ((thong cong) OR (tong cong)) tan ((ban cau) OR (ban dan))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh chinh quan ((thong cong) or (tong cong)) tan ((ban cau) or (ban dan))*.