Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tranh cua » doanh cua, manh cua
cua trung » cua truong, xuan trung, cua nhung
xuong dan » huong dan, xuong san, tuong dan
uong dan » huong dan, tuong dan, duong dan

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: ho ((chieu xanh) OR (chieu sang)) - canh tranh cua trung ((uong dan) OR (xuong dan)) phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - canh tranh cua trung ((uong dan) or (xuong dan)) phan tu~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - canh tranh cua trung ((uong dan) or (xuong dan)) phan tu*.