Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
quen vang » quan van, que lang, quen hanh
hai duong » dai cuong, hai phong
duong hoc » dong hoc, duong hoi, duong ho
thoi que » thoi quen, thon que, thong que
hoc dung » hoc ung, hoc dan, tac dung
dung hoc » dong hoc, dung thuoc, trung hoc
dung sai » dung tai, dung va, dung dat
sai quen » dai quyen, hai quan, mai quan
que van » qua van, quy van, quyet van
hoc mot » hoc moi
hoc mo » hoc moi, hoc mon, hoc ma

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 que van. hoc dung hoc mo ) OR ( dung sai quen vang. hai duong hoc mot ))~.
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi que van. hoc dung hoc mo ) or ( dung sai quen vang. hai duong hoc mot ))*.