Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung cao » truong cao, trung cap, trung co
ho chieu » theo chieu, hoc thieu, doi chieu
cao dung » cao dang, cao dong, cao ung

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

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