Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
chinh cua » chinh ca, chinh sua, hinh cua
dang cong » dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 xanh - hanh chinh cua dang cong tan ((than cap) OR (khan cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh chinh cua dang cong tan ((than cap) OR (khan cap))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh chinh cua dang cong tan ((than cap) OR (khan cap))*.