Perhaps you should try some spelling variations:
ngang chuan » zhang chuan
chieu sach » chinh sach, chiet tach, chieu sang
chinh luat » chinh luan, hinh luat, trinh luat
hoc chieu » hoc thieu, ho chieu, hoc hien
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
chuan he » quan he

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 sach - hanh chinh luat ((cong cong) or (dung cong)) ngang chuan he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh chinh luat ((cong cong) OR (dung cong)) ngang chuan he*.