Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thien anh » thien danh, thien thanh, thien chanh
chinh can » chinh ca, chinh ban, chinh cau
can nhung » canh nhung, cam nhung, ban nhung
tien anh » tieng anh, tien manh, dien anh
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
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 ((thien anh) or (tien anh)) - hanh chinh can nhung cong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tien anh)) - hanh chinh can nhung cong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) or (tien anh)) - hanh chinh can nhung cong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (tien anh)) - hanh chinh can nhung cong dan ((than cau) OR (toan cau))*.