Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
tran tuan » tran xuan, tran quang, tran thanh
tuan dang » tran dang, tuan bang, tuan dung
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - thanh tran tuan dang ((cong tan) or (truong thanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - thanh tran tuan dang ((cong tan) OR (truong thanh)) van ban*.