Perhaps you should try some spelling variations:
luan chung » luan chinh
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
trong van » trong cac
dang van » hoang van, hang va
tuan ban » tuan bang, toan ban, luan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu lang)) - hanh tang luan chung ((dang van) or (trong van)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh tang luan chung ((dang van) OR (trong van)) tuan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - hanh tang luan chung ((dang van) or (trong van)) tuan ban*.