Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trung cap » truong cao, trung tam
tong hung » trong hung, cong hung, tong ung
hung manh » nhung manh, hung anh, tung manh
manh toan » thanh toan, anh tuan, tinh toan
cap tong » cap nong, cap hoang, gap trong
toan ban » van ban

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: hoc ((chieu sang) OR (chieu sach)) - thanh trung cap tong hung manh toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu sach)) - thanh trung cap tong hung manh toan ban*.