Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chinh chau » chinh cau, chinh cho, chinh phu
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
chinh tai » chinh tri
doc hieu » toc thieu, hoc hien
hanh han » hanh nhan, hanh phan, hanh san
cong dan » cong san, cong tan, huong dan
han cua » hang cua, nhan cua, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc thieu)) xanh - hanh han cua nhung cong dan ((chinh tai) or (chinh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - hanh han cua nhung cong dan ((chinh tai) OR (chinh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) xanh - hanh han cua nhung cong dan ((chinh tai) or (chinh chau))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) xanh - hanh han cua nhung cong dan ((chinh tai) or (chinh chau))*.