Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
mot chieu » doi chieu, ho chieu
canh manh » lanh manh, canh tranh, cach mang
chua dong » cua dong, ha dong, huy dong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chieu)) sach - canh manh ((cua dung) or (chua dong)) cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) sach - canh manh ((cua dung) OR (chua dong)) cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) sach - canh manh ((cua dung) or (chua dong)) cong tan phan dau*.