Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
dong dan » dong danh, duong dan, dong san
toan tap » toan ban
luat » luan

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 - hanh trinh (luat or xuat) thuong dong dan ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh trinh (luat OR xuat) thuong dong dan ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trinh (luat or xuat) thuong dong dan ((toan tap) or (van ban))*.