Perhaps you should try some spelling variations:
ngan nhuong » van nhuong
thien thanh » tien thanh, thi thanh, hien hanh
nhuong cong » nhung cong, luong cong, duong cong
thien anh » thien danh, tien anh, thien chanh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 (thien thanh)) - hanh chinh ngan nhuong cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (thien thanh)) - hanh chinh ngan nhuong cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (thien thanh)) - hanh chinh ngan nhuong cong dan than cau*.