Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
phung tri » phung thi, nhung tri, phong tri
hai duong » dai cuong, hai phong
duong hoc » dong hoc, dung hoc, duong hoi
quen vang » quan van, que van, que lang
tri quan » trinh quan, hai quan, mai quan
cong hoc » dong hoc, cong hoa, cong coc
bi cong » bo cong, tai cong, thi cong
hoc man » hoc mang, hoc dan, hoc may

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( phung tri quan luan. hai duong hoc ma ) or ( nhung thoi quen vang. bi cong hoc man ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung tri quan luan. hai duong hoc ma ) OR ( nhung thoi quen vang. bi cong hoc man )).
• Adding a wildcard symbol may retrieve word variants: (( phung tri quan luan. hai duong hoc ma ) or ( nhung thoi quen vang. bi cong hoc man ))*.