Perhaps you should try some spelling variations:
hien khanh » hien hanh, hien nhanh, dien khanh
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung song » nhung cong, nhung bong, nhung chong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
song van » hoang van, trong van, duong van
van toan » van tuan, van tan, van thanh
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: hoc ((hien khanh) OR (((chieu xanh) OR (chieu sang)))) - hanh tranh cua nhung song van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien khanh) or (((chieu xanh) OR (chieu sang)))) - hanh tranh cua nhung song van toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien khanh) or (((chieu xanh) OR (chieu sang)))) - hanh tranh cua nhung song van toan ban*.