Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong ban » cong bang, cong san, cong tan
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trang) OR (hanh trinh)) cua nhung cong ban ((than cap) OR (khan cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - ((hanh trang) or (hanh trinh)) cua nhung cong ban ((than cap) OR (khan cap))~".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh trang) or (hanh trinh)) cua nhung cong ban ((than cap) OR (khan cap))*.