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
luat tong » luat trong, luat thong, luat cong
tong cong » trong cong, cong cong, dung cong
tan toan » tap toan, van toan, dan toan

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