Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, chieu xanh
dung cong » dung trong
tung cua » trung cua, tuong cua, dung cua
nhung bo » nhung bi, nhung bai, nhung don
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: hoc ((hien xanh) or (chieu sang)) - thanh tung cua ((nhung bo) or (dung cong)) anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu sang)) - thanh tung cua ((nhung bo) OR (dung cong)) anh tuan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu sang)) - thanh tung cua ((nhung bo) or (dung cong)) anh tuan ban*.