Perhaps you should try some spelling variations:
chinh luat » chinh luan, hinh luat, trinh luat
luat chung » luan chung, luat thuong, cua chung
cong thanh » dong thanh, cong trinh, cong tan
hieu sang » chieu sang, hieu lang, hieu quang
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
gian van » giang van, gian dan, gian lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sang - hanh chinh luat chung ((cong dan) or (cong thanh)) gian van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh chinh luat chung ((cong dan) OR (cong thanh)) gian van.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - hanh chinh luat chung ((cong dan) or (cong thanh)) gian van*.