Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
dung cong » dung trong
chinh ca » chinh ta, chinh va, chinh tai
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
ca dung » cao dung, cap dung, cu dung

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 nganh) OR (hieu manh)) - hanh chinh ca dung cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu nganh) OR (hieu manh)) - hanh chinh ca dung cong dan ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu nganh) OR (hieu manh)) - hanh chinh ca dung cong dan ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu nganh) OR (hieu manh)) - hanh chinh ca dung cong dan ((toan cau) or (toan cao))*.