Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
dung luong » dung thuong, dung phuong, dung truong
luong quan » thong quan, duong qua
trung cua » truong cua, trung tuan, trung cap
cua dung » cua dang, cua dong, qua dung
ban banh » ban hanh, ban anh, ban danh
ban ban » van ban, can ban, ban dan

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) OR (chieu sach)) - hanh trung cua dung luong quan ((ban ban) OR (ban banh))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - hanh trung cua dung luong quan ((ban ban) OR (ban banh))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - hanh trung cua dung luong quan ((ban ban) OR (ban banh))*.