Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
nhan cach » phan cac
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
phan dau » phan tu, hang dau

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 ((hieu manh) OR (chiet tach)) - canh tranh cua bang cong dan ((nhan cach) OR (phan dau))~.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chiet tach)) - canh tranh cua bang cong dan ((nhan cach) or (phan dau))*.