Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh tinh » thanh binh, nhanh tinh, than kinh
viet chung » viet hung, viet phuong, viet thuong
chung cong » nhung cong, chong cong, phung cong
tinh viet » trinh viet, ninh viet, dinh viet
cong ban » cong bang, cong san, cong tan
phap lap » phan lap, phap lam, phap luan
luat » luan, xuat

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: ho ((chieu sang) OR (chieu xanh)) - thanh tinh viet chung cong ban ((phap lap) OR (phap luat))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - thanh tinh viet chung cong ban ((phap lap) or (phap luat))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - thanh tinh viet chung cong ban ((phap lap) or (phap luat))*.