Perhaps you should try some spelling variations:
hieu tieng » viet tieng, dien tieng, tiep tieng
chinh luat » chinh luan, hinh luat, trinh luat
nha hieu » nha dieu, nghe hieu, phan hieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
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: nha hieu tieng - hanh chinh luat thuong ((cong dan) or (cong san)) ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nha hieu tieng - hanh chinh luat thuong ((cong dan) OR (cong san)) ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nha hieu tieng - hanh chinh luat thuong ((cong dan) or (cong san)) ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: nha hieu tieng - hanh chinh luat thuong ((cong dan) or (cong san)) ((toan cau) OR (toan tap))*.