Perhaps you should try some spelling variations:
nhung khai » nhung kham, nhung bai, nhung pham
khai quyen » khi quyen, khai quyet, nhan quyen
quyen vang » quyen van, quyet van, huyen van
nhung loi » nhung bai, nhung bi, nhung gi
nuoi dong » nuoi duong, nuoi ong, nuoi trong
que vang » que van, que lang, que quang
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 loi que vang. hoc dung hoc cong ) or ( nhung khai quyen vang. nuoi dong hoc cong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung loi que vang. hoc dung hoc cong ) OR ( nhung khai quyen vang. nuoi dong hoc cong )).
• Adding a wildcard symbol may retrieve word variants: (( nhung loi que vang. hoc dung hoc cong ) or ( nhung khai quyen vang. nuoi dong hoc cong ))*.