Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
trinh cua » tinh cua, trinh luat, trinh quan
nhung van » phung van, nhung bai, nhung cau
van tuan » van quan, van ban, anh tuan
tuan van » luan van, tran van, tan van

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: ho ((chieu xanh) OR (hieu manh)) - hanh trinh cua ((nhung van) OR (trong cong)) van tuan van~.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu manh)) - hanh trinh cua ((nhung van) or (trong cong)) van tuan van*.