Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
chinh ta » chinh tai, chinh va, chinh tri
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
ta dung » tac dung, tan dung, tao dung

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