Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cong thang » cong thanh, cang thang, cong thong
thang phan » thanh phan, thong phan, than phan
canh tinh » hanh tinh, manh tinh, nhanh tinh
toan dang » tran dang, toan mang, toan tang
dang cong » dung cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((canh tranh) or (canh tinh)) toan dang cong thang phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((canh tranh) OR (canh tinh)) toan dang cong thang phan tu.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((canh tranh) or (canh tinh)) toan dang cong thang phan tu*.