Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tong cong » trong cong, cong cong, dung cong
tam tong » tai tong, tam nong, tam song
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than

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 - ((thanh trung) or (thanh tung)) tam tong cong ban phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((thanh trung) OR (thanh tung)) tam tong cong ban phan tu.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((thanh trung) or (thanh tung)) tam tong cong ban phan tu*.