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