Perhaps you should try some spelling variations:
thuyet tach » thuyet mach, thuyet hach, thuyet xac
hoc thuyet » hoc chuyen
hanh trinh » canh tranh
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thuyet tach - ((hanh trinh) or (hanh chinh)) luat thong cong dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thuyet tach - ((hanh trinh) OR (hanh chinh)) luat thong cong dan than man.
• Adding a wildcard symbol may retrieve word variants: hoc thuyet tach - ((hanh trinh) or (hanh chinh)) luat thong cong dan than man*.