Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cua nhung » va nhung
cong san » cong tac
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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: hoc hien xanh - ((hanh trang) OR (canh tranh)) cua nhung cong san ((than ban) OR (than man))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trang) or (canh tranh)) cua nhung cong san ((than ban) OR (than man))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trang) or (canh tranh)) cua nhung cong san ((than ban) OR (than man))*.