Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
toan cau » toan tap, toan tai
toan cao » toan tap
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 trinh cua nhung cong dan ((toan cau) or (((toan cao) OR (toan ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh trinh cua nhung cong dan ((toan cau) OR (((toan cao) OR (toan ban)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh trinh cua nhung cong dan ((toan cau) or (((toan cao) OR (toan ban))))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh trinh cua nhung cong dan ((toan cau) or (((toan cao) OR (toan ban))))*.