Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
xuan trinh » qua trinh, xuan dinh, xuan kinh
cho chieu » ho chieu, theo chieu, chon chien
hanh dung » thanh dung, anh dung, hanh dong
dung xuan » duong xuan, dung luan, dung quan
cong tinh » cong trinh, cong vinh, cong thanh
long tinh » trong tinh, luong tin, dong tin
toan cau » toan cao, toan ban, toan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chieu sach - hanh dung xuan trinh ((cong tinh) OR (long tinh)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: cho chieu sach - hanh dung xuan trinh ((cong tinh) OR (long tinh)) toan cau*.