Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
trung cap » truong cao, trung tam
hanh cong » thanh cong, hang cong, hanh dong
cap hanh » chap hanh, cap han, cac thanh
cong tap » cuong tap, cong tac, cong tan
quan tap » quan tai, quan lap, quan tay
quan tam » quan tai, quan am, quan nam

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 sach)) - thanh trung cap hanh cong tap ((quan tap) OR (quan tam))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sach)) - thanh trung cap hanh cong tap ((quan tap) or (quan tam))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sach)) - thanh trung cap hanh cong tap ((quan tap) or (quan tam))*.