Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
manh cua » doanh cua, ban cua
tan than » tan thanh, tan tran, tam than
ban than » ban thanh, van thanh, ban hang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh manh cua thong cong ((tan than) OR (ban than)) man~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh manh cua thong cong ((tan than) or (ban than)) man*.