Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
ban hang » ngan 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: doc hieu manh - hanh trinh cua nhung cong ((anh tuan) OR (ban hang)) cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh trinh cua nhung cong ((anh tuan) or (ban hang)) cau*.