Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hanh trinh » canh tranh, hanh chinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
trinh cua » tinh cua, trinh luat, trinh quan
cua khong » hua khong, cua phuong, cua thuong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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