Perhaps you should try some spelling variations:
thieu sach » chieu sach, hieu cach, theo sach
thien hach » thien thanh, hien hanh
manh tuong » manh tung, manh cuong, minh tuong
tuong cua » truong cua, huong cua, thong cua
cua bang » chua bang, cua ban, cua dang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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) OR (thien hach)) - manh tuong cua bang ((cong dan) OR (cong san)) phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (thien hach)) - manh tuong cua bang ((cong dan) or (cong san)) phan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (thien hach)) - manh tuong cua bang ((cong dan) or (cong san)) phan cau*.