Perhaps you should try some spelling variations:
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
hien xanh » hien hanh, hien nhanh, chieu xanh
cong cong » cong dong, trong cong, dung cong
tran tuan » tran xuan, tran thanh, tranh luan
cong san » cong tac
quang » quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((hanh trung) OR (hanh trang)) cua cong cong san ((tran tuan) or (tran quang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh trung) OR (hanh trang)) cua cong cong san ((tran tuan) OR (tran quang)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trung) OR (hanh trang)) cua cong cong san ((tran tuan) or (tran quang))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trung) OR (hanh trang)) cua cong cong san ((tran tuan) or (tran quang))*.