Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hanh dinh » thanh dinh, hinh dinh, anh dinh
cua thong » cua thuong, cua khong, cua tong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 xanh - ((hanh tinh) or (hanh dinh)) cua thong cong dan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh tinh) OR (hanh dinh)) cua thong cong dan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh tinh) or (hanh dinh)) cua thong cong dan ((toan tai) or (toan ban))*.