Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
luat nhung » luat chung, luat thuong, thuat nhung
nhung cong » dung cong, thong cong, hang cong
khoan cam » khoa cam, khoan va, phan cam
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, phan cac

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 nhung cong tan ((khan cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh trinh luat nhung cong tan ((khan cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trinh luat nhung cong tan ((khan cap) or (khoan cam))*.