Perhaps you should try some spelling variations:
chung thi » phung thi, chung chi, nhung thi
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
nuoi dung » nguoi dung, nuoi duong, noi dung
thi quen » thoi quen, thi quan, thi 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 thi quen vang. doi tuong hoc mot ) or ( nhung phi quan lang. nuoi dung hoc mot ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chung thi quen vang. doi tuong hoc mot ) OR ( nhung phi quan lang. nuoi dung hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (( chung thi quen vang. doi tuong hoc mot ) or ( nhung phi quan lang. nuoi dung hoc mot ))*.