Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
thanh cau » thanh chau, thanh mau, nhanh cau
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
thang va » hang va, trang va, thong va
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) manh - cang thang va dung ((cong van) OR (song van)) thanh cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) or (doc hieu)) manh - cang thang va dung ((cong van) OR (song van)) thanh cau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (doc hieu)) manh - cang thang va dung ((cong van) OR (song van)) thanh cau*.