Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
dan than » dan chan, ban than, van than
van tai » von tai, van tuan

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 chieu xanh - ((hanh tranh) OR (hanh trang)) cua nhung cong ((dan than) OR (van tai)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - ((hanh tranh) OR (hanh trang)) cua nhung cong ((dan than) or (van tai)) ban~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh tranh) OR (hanh trang)) cua nhung cong ((dan than) or (van tai)) ban*.