Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
tranh cua » doanh cua, manh cua
nong cong » cong cong, tong cong, nang cong
cua nong » cua cong, cuu nong, cua dong
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan ban » van ban

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 (chau tinh))) OR (trieu tinh)) - canh tranh cua nong cong tap toan ban~.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) or (chau tinh))) or (trieu tinh)) - canh tranh cua nong cong tap toan ban*.