Perhaps you should try some spelling variations:
quan trong » gian trong
nhung thoi » nhung thi, nhung loi, nhung tri
quet lang » quan lang, biet lang
bien quan » bien quang, lien quan, vien quan
trong san » trong cac, cong san, dong san
que lang » quan lang, que quang, que van
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 (phung thi)) ((que lang) OR (quet lang)). bien quan trong san than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thoi) OR (phung thi)) ((que lang) OR (quet lang)). bien quan trong san than.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nhung thoi) or (phung thi)) ((que lang) OR (quet lang)). bien quan trong san than".
• Adding a wildcard symbol may retrieve word variants: ((nhung thoi) or (phung thi)) ((que lang) OR (quet lang)). bien quan trong san than*.