Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
doan thien » hoan thien, doan thi, toan thiet
thien hach » thien thanh, hien hanh
chinh luat » chinh luan, hinh luat, trinh luat
cong van » cong vang, cong san, song van
than man » than ma, tran manh, than phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doan thien hach - hanh chinh luat thuong cong van ((than man) or (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doan thien hach - hanh chinh luat thuong cong van ((than man) OR (thanh san)).
• Adding a wildcard symbol may retrieve word variants: doan thien hach - hanh chinh luat thuong cong van ((than man) or (thanh san))*.