Perhaps you should try some spelling variations:
dang thanh » dang hanh, hoang thanh, quang thanh
dong thanh » truong thanh
thang song » thang long, thang trong, thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
nha hieu » nha dieu, nghe hieu, phan hieu
song van » hoang van, trong van, duong van
ban tap » bai tap, han tap, ban tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: nha hieu lang - thanh ((dang thanh) or (dong thanh)) thang song van ban tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nha hieu lang - thanh ((dang thanh) OR (dong thanh)) thang song van ban tap.
• Adding a wildcard symbol may retrieve word variants: nha hieu lang - thanh ((dang thanh) or (dong thanh)) thang song van ban tap*.