Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hanh nhan » thanh nhan, danh nhan, anh nhan
hanh han » hanh phan, hanh san, anh han
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
toan ban » van ban
3 chau » a chau, o chau

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: 3 chau tinh - ((hanh han) OR (hanh nhan)) cua dung ((cong dong) OR (cong san)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "3 chau tinh - ((hanh han) OR (hanh nhan)) cua dung ((cong dong) or (cong san)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: 3 chau tinh - ((hanh han) OR (hanh nhan)) cua dung ((cong dong) or (cong san)) toan ban*.