Perhaps you should try some spelling variations:
thien minh » tien minh, trien minh, thien tinh
cong thanh » dong thanh, cong trinh, truong thanh
hien tinh » khien tinh, thien tinh, bien tinh
chinh sua » chinh su, chinh cua, chinh luan
sua dung » suat dung, su dung, qua dung
cong tan » cong tac, cong san, cong ty
toan cau » 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: hoc ((hien tinh) or (thien minh)) - hanh chinh sua dung ((cong thanh) OR (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (thien minh)) - hanh chinh sua dung ((cong thanh) OR (cong tan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) or (thien minh)) - hanh chinh sua dung ((cong thanh) OR (cong tan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) or (thien minh)) - hanh chinh sua dung ((cong thanh) OR (cong tan)) toan cau*.