Perhaps you should try some spelling variations:
tdanh trung » thanh trung, thanh tung, dang trung
chieu xanh » chieu sach, chieu sang, chieu tinh
danh trung » dang trung, dinh trung, manh trung
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, song van, cong tan
cong san » cong tac
than cau » toan cau, phan cau, than cap

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 - ((danh trung) OR (tdanh trung)) cua nhung ((cong van) OR (cong san)) than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((danh trung) or (tdanh trung)) cua nhung ((cong van) OR (cong san)) than cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((danh trung) or (tdanh trung)) cua nhung ((cong van) OR (cong san)) than cau*.