Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
cong thanh » dong thanh, cong trinh, truong thanh
tran tran » tan tran, tran tuan, tran tan
tran dang » tran quang, tran hoang, tranh hang
cong tan » cong tac, cong san, cong ty

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 tran dang ((cong tan) or (cong thanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - thanh tran tran dang ((cong tan) OR (cong thanh)) van ban*.