Perhaps you should try some spelling variations:
chuong cong » cuong cong, chong cong, chuong dong
van chuong » van phong, van duong, van hung
hanh trinh » hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong san » cong tac
tao cao » bao cao, toan cao
tai sao » tai san

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh trinh) or (canh tranh)) van chuong cong san ((tao cao) or (tai sao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trinh) OR (canh tranh)) van chuong cong san ((tao cao) OR (tai sao)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trinh) or (canh tranh)) van chuong cong san ((tao cao) or (tai sao))*.