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
cong cong » cong dong, trong cong, dung cong
qua cong » cua cong, qua song, va cong
cong van » cong vang, cong san, song van
thai cao » tai cao, thoai cac, thuat cao
giai cao » giai ca, giai cac, giai bai

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 (thanh tung)) qua cong cong van ((thai cao) or (giai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((canh tranh) OR (thanh tung)) qua cong cong van ((thai cao) OR (giai cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((canh tranh) or (thanh tung)) qua cong cong van ((thai cao) or (giai cao))*.