Perhaps you should try some spelling variations:
hanh trinh » canh tranh
hieu xanh » chieu xanh, hieu manh, hieu nganh
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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 trinh) or (hanh chinh)) cua dung cong dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trinh) OR (hanh chinh)) cua dung cong dan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh trinh) or (hanh chinh)) cua dung cong dan ((toan cau) or (toan tap))*.