Perhaps you should try some spelling variations:
thong duong » tuong duong, thong dung, thong huong
chieu sang » chieu sach, chieu xanh, hieu lang
duong manh » duong van
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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) or (trung tam)) thong duong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - thanh ((trung cua) OR (trung tam)) thong duong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh ((trung cua) or (trung tam)) thong duong manh toan ban*.