Perhaps you should try some spelling variations:
nguoi tuong » nguoi thuong, nguoi muong, nguoi thong
nhung thoi » nhung thi, nhung loi, nhung tri
tuong hoc » truong hoc, tuong ho, duong hoc
thoi duy » thoi dai, thoi ky, thi dua
thi quan » thi xuan, tri quan, thi luan
hoc dung » hoc ung, hoc dan, tac dung
thuoc ma » hoc ma, duoc ma
duy van » duy vat, dung van
hoc mot » hoc moi
quan va » quan vi, quan ha, luan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung thoi duy van. nguoi tuong hoc mot ) or ( phung thi quan va. hoc dung thuoc ma ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung thoi duy van. nguoi tuong hoc mot ) OR ( phung thi quan va. hoc dung thuoc ma )).
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi duy van. nguoi tuong hoc mot ) or ( phung thi quan va. hoc dung thuoc ma ))*.