Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thanh dung » thanh duong, thanh hung, hanh dung
thanh tung » thanh cong
huong cong » luong cong, duong cong, cuong cong
chinh chau » chinh cau, chinh phu, minh chau
hoc thieu » toc thieu, hoc hien
va huong » va thuong, va phuong, va tuong
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - ((thanh dung) OR (thanh tung)) va huong cong dan ((chinh chau) or (chinh cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((thanh dung) OR (thanh tung)) va huong cong dan ((chinh chau) OR (chinh cho)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - ((thanh dung) OR (thanh tung)) va huong cong dan ((chinh chau) or (chinh cho))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((thanh dung) OR (thanh tung)) va huong cong dan ((chinh chau) or (chinh cho))*.