Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh trinh » canh tranh, hanh chinh
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cong tap » cuong tap, cong tac, cong tan
toan cao » toan tap
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 thieu manh - hanh trinh luat thong cong tap ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - hanh trinh luat thong cong tap ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - hanh trinh luat thong cong tap ((toan cao) or (toan ban))*.