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
hoc thieu » toc thieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
tuan bang » tuan dang, tuan hoang, thuat bang
cong tan » cong tac, cong ty, cong ha
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh tran tuan bang ((((cong tan) OR (cong san))) or (cong thanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tran tuan bang ((((cong tan) OR (cong san))) OR (cong thanh)) van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tran tuan bang ((((cong tan) OR (cong san))) or (cong thanh)) van ban*".