Perhaps you should try some spelling variations:
quan trong » gian trong
nhung thoi » nhung thi, phung thi, nhung loi
nhung tri » nhung bai, dung tri, nhung bi
quen vang » quan van, que van, que lang
biet quan » viet quan, bien quang, viet quang
trong san » trong cac, cong san, dong san
san than » sang than, san thanh, ban than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nhung thoi) or (nhung tri)) ((quen vang) or (quan luan)). biet quan trong san than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thoi) OR (nhung tri)) ((quen vang) OR (quan luan)). biet quan trong san than.
• Adding a wildcard symbol may retrieve word variants: ((nhung thoi) or (nhung tri)) ((quen vang) or (quan luan)). biet quan trong san than*.