Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doc hieu » toc thieu, hoc thieu
chinh ca » chinh ta, chinh va, chinh tai
ca nhung » cua nhung, cam nhung, va nhung
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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