Perhaps you should try some spelling variations:
nhung thi » nhung thoi, phung thi, nhung tri
quen vang » quan van, que lang, quen hanh
biet tran » viet tran, viet trang, biet trong
bien tran » bien tram, bien trong, hien trang
trong van » trong cac
van thanh » ban thanh, van tuan
que van » qua van, quy van, quyet van

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhung thi ((quen vang) OR (que van)). ((biet tran) or (bien tran)) trong van thanh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhung thi ((quen vang) OR (que van)). ((biet tran) OR (bien tran)) trong van thanh.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nhung thi ((quen vang) OR (que van)). ((biet tran) or (bien tran)) trong van thanh".
• Adding a wildcard symbol may retrieve word variants: nhung thi ((quen vang) OR (que van)). ((biet tran) or (bien tran)) trong van thanh*.