Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
truong cao » truong dai
dung thanh » duong thanh, dong thanh, dang thanh
trung cua » truong cua, trung tuan, trung cap
thanh hoa » thanh pho
ong dung » cong dung, hong dung, bong dung
hoa cac » hoa chat, chon cac

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 tinh) or (chieu sang)) - thanh ((trung cua) or (truong cao)) ong dung thanh hoa cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (chieu sang)) - thanh ((trung cua) OR (truong cao)) ong dung thanh hoa cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (chieu sang)) - thanh ((trung cua) or (truong cao)) ong dung thanh hoa cac*.