Perhaps you should try some spelling variations:
trung phung » trong phung, trang phung, trung hung
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
cua trung » cua truong, xuan trung, cua nhung
van thanh » van tuan
ban thanh » ban hanh, ban hang

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua trung phung ((van thanh) OR (ban thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua trung phung ((van thanh) OR (ban thanh)) cau*.