Perhaps you should try some spelling variations:
quan trong » gian trong
nhung tri » nhung bai, dung tri, nhung bi
nhung thi » nhung thoi, phung thi, nhung chi
hung khoi » dung khoa, hang khoa, dang khoi
biet quan » viet quan, bien quang, viet quang
trong tan » trong quan, trong cac, trong ca
tan than » tan thanh, tan tran, ban than
quan li » quan ly, quan tri

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

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