Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
thanh chau » thanh cha, thanh cham, thanh chu
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, dung cong, dang cong
ban thanh » ban hanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - thanh trung cua ((cong cong) or (trong cong)) ban thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - thanh trung cua ((cong cong) OR (trong cong)) ban thanh chau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh trung cua ((cong cong) or (trong cong)) ban thanh chau*.