Perhaps you should try some spelling variations:
chieu tach » chieu sach, chiu trach, chieu tinh
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
cong doanh » cong danh, cong doan, dong doanh
nhan cau » nhanh cau, phan cau, nhan sau
luan va » luan van, luat va
va cong » tai cong, cua cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu tach) or (chiet tach)) - hanh trinh luan va cong doanh nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu tach) OR (chiet tach)) - hanh trinh luan va cong doanh nhan cau*.