Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu quang » thieu quang, hieu quan, hieu qua
chinh luat » chinh luan, hinh luat, trinh luat
thong cong » trong cong, thong thong, phong chong
tong cong » trong cong, cong cong, dung cong
dan toan » van toan, dan than, manh toan
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (hieu quang)) - hanh chinh luat ((thong cong) OR (tong cong)) dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hieu quang)) - hanh chinh luat ((thong cong) OR (tong cong)) dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (hieu quang)) - hanh chinh luat ((thong cong) OR (tong cong)) dan toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hieu quang)) - hanh chinh luat ((thong cong) OR (tong cong)) dan toan tap*.