Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
chieu sang » chieu sach, chieu xanh, hieu lang
khong cong » thong cong, khong cang, chong cong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong tran » cong tan, cong tuan, cong toan
tran gian » tran giang, tran gia, trang giai
gian dan » gian lang

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 ((truong thanh) or (trung thanh)) khong cong tran gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - thanh ((truong thanh) OR (trung thanh)) khong cong tran gian dan.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh ((truong thanh) or (trung thanh)) khong cong tran gian dan*.