Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
thong cong » trong cong, tong cong, thong thong
thiet anh » thien anh, thuyet anh, thich anh
chinh ta » chinh tai, chinh va, chinh tri
ta thong » tao thong, tac thong, tra thong
cong san » cong tac
than tap » toan tap, phan tap, than cap
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: toan ((thiet anh) or (thien danh)) - hanh chinh ta thong cong san ((than tap) OR (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toan ((thiet anh) OR (thien danh)) - hanh chinh ta thong cong san ((than tap) OR (han tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toan ((thiet anh) or (thien danh)) - hanh chinh ta thong cong san ((than tap) OR (han tap))".
• Adding a wildcard symbol may retrieve word variants: toan ((thiet anh) or (thien danh)) - hanh chinh ta thong cong san ((than tap) OR (han tap))*.