Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trung » thanh trung, hanh trang, manh trung
hieu xanh » chieu xanh, hieu manh, hieu nganh
chua nang » chuc nang, chua xang, kha nang
doc hieu » toc thieu, hoc thieu, hoc hien
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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 trung) or (hanh trinh)) chua nang ((cong ban) or (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trung) OR (hanh trinh)) chua nang ((cong ban) OR (cong san)) phan cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh trung) or (hanh trinh)) chua nang ((cong ban) or (cong san)) phan cau*.