Perhaps you should try some spelling variations:
thieu manh » tien manh, trieu minh, chieu xanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
dan than » dan chan, ban than, van than
van toan » van tuan, van tan, van thanh

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 ((thieu manh) OR (hieu manh)) - canh tranh cua tong cong ((dan than) OR (van toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (hieu manh)) - canh tranh cua tong cong ((dan than) or (van toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (hieu manh)) - canh tranh cua tong cong ((dan than) or (van toan)) cau*.