Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
quen vang » quan van, que van, que lang
hoc dung » hoc ung, hoc dan, tac dung
thuoc mo » thuoc moi, thuoc ma, thuoc bo
noi tong » noi cong, nuoi trong, noi tieng
tong hoc » tuong hoc, thong hoc, trong hoc
hoc moi » hoc noi

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. hoc dung thuoc mo ) OR ( nhung thoi quen vang. noi tong hoc moi ))~.
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi quen vang. hoc dung thuoc mo ) or ( nhung thoi quen vang. noi tong hoc moi ))*.