Perhaps you should try some spelling variations:
thien tinh » khien tinh, thien minh, tien tinh
hanh trinh » canh tranh, hanh chinh
luat chinh » luat hinh, luan chinh, luat kinh
chinh cong » thanh cong, trinh cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trieu tinh) or (thien tinh)) - hanh trinh luat chinh cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu tinh) OR (thien tinh)) - hanh trinh luat chinh cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu tinh) or (thien tinh)) - hanh trinh luat chinh cong tac toan ban*.