Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thien anh » thien danh, thien thanh, thien chanh
chinh sua » chinh su, chinh cua, chinh luan
sua nhung » cua nhung, qua nhung, chua nhung
tien anh » tieng anh, tien manh, dien anh
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu

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 sua nhung cong sat phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (tien anh)) - hanh chinh sua nhung cong sat phan cau*".