Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc thieu, hoc thiet, hoc tien
chinh sua » chinh su, chinh cua, chinh luan
chinh tai » chinh tri
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc hien)) tinh - hanh ((chinh sua) OR (chinh tai)) nhung cong dan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thien) OR (hoc hien)) tinh - hanh ((chinh sua) or (chinh tai)) nhung cong dan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) OR (hoc hien)) tinh - hanh ((chinh sua) or (chinh tai)) nhung cong dan toan tap*.