Perhaps you should try some spelling variations:
nguoi dung » nguoi nung, nguoi muong, noi dung
chung chi » thuong chi, chung cu, chung vi
quen vang » quan van, que van, que lang
doi tuong » moi truong, doi song
tuong hoc » truong hoc, tuong ho, duong hoc
nhung phi » nhung phu, nhung chi, nhung thi
quan lang » quan hoang, gian lang, quan luan
chi quen » thoi quen, khi quyen, chi huyen
phi quan » thi quan, phap quan, phan quan
dung hoc » dong hoc, dung thuoc, trung hoc
hoc mot » hoc moi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( chung chi quen vang. doi tuong hoc mot ) or ( nhung phi quan lang. nguoi dung hoc mot ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chung chi quen vang. doi tuong hoc mot ) OR ( nhung phi quan lang. nguoi dung hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (( chung chi quen vang. doi tuong hoc mot ) or ( nhung phi quan lang. nguoi dung hoc mot ))*.