Perhaps you should try some spelling variations:
trong nhung » thong nhung, trong phung, trong thuong
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
trong hung » trong phung, trong rung, trong dung
trung cua » truong cua, trung tuan, trung cap
tuan ban » tuan bang, toan ban, luan 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 ((chieu sang) OR (chieu xanh)) - thanh trung cua ((trong hung) OR (trong nhung)) anh tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (chieu xanh)) - thanh trung cua ((trong hung) OR (trong nhung)) anh tuan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu xanh)) - thanh trung cua ((trong hung) OR (trong nhung)) anh tuan ban*.