Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
quen vang » quan van, que van, que lang
muong hoc » duong hoc, tuong hoc, muong hoa
que vang » que van, que lang, que quang
hoc dung » hoc ung, hoc dan, tac dung
dung hoi » duong hoi, dung hoai, dung thoi
hoc moi » hoc noi
hoi moi » doi moi, hai moi, hoa moi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung thoi quen vang. nguoi muong hoc moi ) OR ( nhung bai que vang. hoc dung hoi moi ))~.
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi quen vang. nguoi muong hoc moi ) or ( nhung bai que vang. hoc dung hoi moi ))*.