Perhaps you should try some spelling variations:
quyen vang » quyen van, quyet van, huyen van
nhung thoi » nhung thi, phung thi, nhung loi
quen vang » quan van, que van, que lang
nhung khi » nhung khai, nhung khia, nhung chi
khi quyen » thi huyen, thi xuyen, thi tuyen
nuoi dong » nuoi duong, nuoi ong, nuoi trong
hoc dung » hoc ung, hoc dan, tac dung
dung hoc » dung thuoc, trung hoc, dung khoa
hoc cong » hoc co, cac cong
dong hoc » dong co, dong luc

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 quen vang. hoc dung hoc cong ) or ( nhung khi quyen vang. nuoi dong hoc cong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung thoi quen vang. hoc dung hoc cong ) OR ( nhung khi quyen vang. nuoi dong hoc cong )).
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi quen vang. hoc dung hoc cong ) or ( nhung khi quyen vang. nuoi dong hoc cong ))*.