Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
nhung noi » nhung loi, nhung nguoi, nhung nghi
quen vang » quan van, que van, que lang
muong hoc » duong hoc, tuong hoc, muong hoa
noi quan » noi quang, moi quan, nguoi quan
noi dung » hoc dung
dung hoc » dong hoc, dung thuoc, trung hoc
quan va » quan vi, quan ha, luan va
hoc man » hoc mang, hoc dan, hoc ma
hoc mo » hoc moi, hoc mot, hoc mon

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung noi quan va. noi dung hoc mo ) or ( nhung thoi quen vang. nguoi muong hoc man ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung noi quan va. noi dung hoc mo ) OR ( nhung thoi quen vang. nguoi muong hoc man )).
• Adding a wildcard symbol may retrieve word variants: (( nhung noi quan va. noi dung hoc mo ) or ( nhung thoi quen vang. nguoi muong hoc man ))*.