Perhaps you should try some spelling variations:
nghiem ban » nghiem van, nghiem xuan, nghiep bang
nghien ban » nghiep ban, nghiep bang, nghiep bao
hoc nghiem » hoc nghien, thuc nghiem, hoc nghe
danh tac » danh bac, doanh tai, danh thuc
vien nam » vien dai, van nam, vien da
vung moc » dung mo, dung moi, dung mot
tac vung » tac vang, tay vung, cac vung
hien nay » hien dai
tac dung » sach dung, xay dung, tin dung
canh tac » canh tay, canh giac, cong tac
hoc viet » hoc hien
dung hoc » dong hoc, dung thuoc, trung hoc
van hoc » van hoa
tac van » tac vang, cac van, tac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( danh tac dung hoc viet nam ) or ((((( canh tac van hoc ((nghien ban) or (phien ban)) ) or ( canh tac van hoc nghiem ban ))) or ( danh tac vung moc ((vien nam) OR (hien nay)) ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh tac dung hoc viet nam ) OR ((((( canh tac van hoc ((nghien ban) OR (phien ban)) ) OR ( canh tac van hoc nghiem ban ))) OR ( danh tac vung moc ((vien nam) OR (hien nay)) )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh tac dung hoc viet nam ) or ((((( canh tac van hoc ((nghien ban) or (phien ban)) ) or ( canh tac van hoc nghiem ban ))) or ( danh tac vung moc ((vien nam) OR (hien nay)) ))))".
• Adding a wildcard symbol may retrieve word variants: (( danh tac dung hoc viet nam ) or ((((( canh tac van hoc ((nghien ban) or (phien ban)) ) or ( canh tac van hoc nghiem ban ))) or ( danh tac vung moc ((vien nam) OR (hien nay)) ))))*.