Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
biet trong » bien trong, viet trong, biet rong
quen vang » quan van, que van, que lang
biet tran » bien tran, viet trang, hiep tran
viet tran » viet trang, viet tuan, viet trung
trong ban » trong san, trong tan, trong quan
ban than » ban thanh, van thanh, ban hang

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 quen vang. ((((biet tran) OR (biet trong))) or (viet tran)) trong ban than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhung thoi quen vang. ((((biet tran) OR (biet trong))) OR (viet tran)) trong ban than.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nhung thoi quen vang. ((((biet tran) OR (biet trong))) or (viet tran)) trong ban than".
• Adding a wildcard symbol may retrieve word variants: nhung thoi quen vang. ((((biet tran) OR (biet trong))) or (viet tran)) trong ban than*.