Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chinh cua » chinh ca, chinh sua, hinh cua
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu
cong san » cong tac
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 cua nhung cong san ((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 cua nhung cong san ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc hien)) nganh - hanh chinh cua nhung cong san ((toan cau) or (toan cao))*.