Perhaps you should try some spelling variations:
chinh quan » chinh luan, chinh quyen, chinh ngan
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
doc hieu » hoc thieu, hoc hien
cong tap » cuong tap, cong tac, cong tan
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: ((doc hieu) or (toc thieu)) xanh - hanh chinh quan dung cong tap ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) xanh - hanh chinh quan dung cong tap ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (toc thieu)) xanh - hanh chinh quan dung cong tap ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) xanh - hanh chinh quan dung cong tap ((toan cau) OR (toan tap))*.