Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
canh soanh » canh tranh, hanh doanh, oanh oanh
cua thuong » cua truong, cua phuong, ca thuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
soanh cua » doanh cua, manh cua, tranh cua
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
chan dau » phan dau, han dau, chan doan
chan dan » chan doan, chan dang, nhan dan

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 - canh soanh cua thuong cong san ((chan dau) or (chan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh soanh cua thuong cong san ((chan dau) OR (chan dan)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh soanh cua thuong cong san ((chan dau) or (chan dan))*.