Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
cong quang » luong quang, thong quang, duong quang
quang toan » quang tuan, quang tran, quang doan
hanh tang » hanh trang, anh tang, hanh mang
tang luat » tang luan, nang suat, hang luan
toan ban » van 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 ((chieu xanh) OR (chieu sach)) - hanh tang luat thong cong quang toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - hanh tang luat thong cong quang toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - hanh tang luat thong cong quang toan ban*.