Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thien danh » thien anh, thien dang, thien chanh
khong cong » thong cong, khong cang, chong cong
chinh sua » chinh su, chinh cua, chinh luan
sua khong » cua khong, hua khong, suat thong
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien thanh) or (thien danh)) - hanh chinh sua khong cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (thien danh)) - hanh chinh sua khong cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (thien danh)) - hanh chinh sua khong cong tan van ban*.