Perhaps you should try some spelling variations:
dang cong » dung cong
doc hieu » toc thieu, hoc thieu
anh danh » anh anh, anh dang, minh danh
anh dinh » hanh dinh, lanh dinh, anh kinh
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 hien) OR (doc hieu)) xanh - ((anh danh) OR (anh dinh)) cua dang cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) or (doc hieu)) xanh - ((anh danh) OR (anh dinh)) cua dang cong dan toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doc hieu)) xanh - ((anh danh) OR (anh dinh)) cua dang cong dan toan cao*.