Perhaps you should try some spelling variations:
quen vang » quan van, que van, que lang
nhung hoi » nhung thoi, nhung loi, nhung noi
nguoi ung » nguoi nung, nguoi dung, nguoi muong
hung chu » nhung chu, hung thu, chung chou
chu quen » chu quyen, chu quang, chuc quan
tac dung » sach dung, xay dung, tin dung
dung hoc » dong hoc, dung thuoc, trung hoc
hoi qua » hoi cua, hoa qua, hai quan
qua van » quan van, qua ban, qua san
ung hoc » vung hoc, ung hoa, ung ho
hoc moi » hoc noi
hoc mo » hoc mot, hoc mon, hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( hung chu quen vang. tac dung hoc mo ) or ( nhung hoi qua van. nguoi ung hoc moi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( hung chu quen vang. tac dung hoc mo ) OR ( nhung hoi qua van. nguoi ung hoc moi )).
• Adding a wildcard symbol may retrieve word variants: (( hung chu quen vang. tac dung hoc mo ) or ( nhung hoi qua van. nguoi ung hoc moi ))*.