Perhaps you should try some spelling variations:
quan trong » gian trong
nhung thoi » phung thi, nhung loi, nhung tri
trong quan » thong quan, tong quan, thong quang
nhung thi » phung thi, nhung tri, nhung chi
quet lang » que lang, quan lang, biet lang
bien quan » bien quang, lien quan, vien quan
quan than » quan thanh, qua than, quang thanh

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 thi)) quet lang. bien quan trong quan than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thoi) OR (nhung thi)) quet lang. bien quan trong quan than.
• Adding a wildcard symbol may retrieve word variants: ((nhung thoi) or (nhung thi)) quet lang. bien quan trong quan than*.