Perhaps you should try some spelling variations:
thanh trung » thanh tung
truong cong » trong cong, truong dong, truong long
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
cap truong » cac truong, lap truong, cao truong
trung cap » truong cao, trung tam
sang than » cang thang, dang thanh, sang tao
san than » san thanh, ban than, van than

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) OR (chieu xanh)) - thanh trung cap truong cong ((san than) or (sang than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu xanh)) - thanh trung cap truong cong ((san than) OR (sang than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (chieu xanh)) - thanh trung cap truong cong ((san than) or (sang than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) OR (chieu xanh)) - thanh trung cap truong cong ((san than) or (sang than)) cau*.