Perhaps you should try some spelling variations:
thuc nang » chuc nang, thuc trang, thich nang
phien nam » hien nay, phien ban, mien nam
hoc vien » hoc hien, hoc tieng, hoc vi
mien bac » vien bach, dien ban, gian bac
vung hoc » dung hoc, vung moc, trung hoc
tai vung » thai vung, tai vuong, tay vung
tac nang » tac vang, tai nang, tich nang
vien nam » vien dai, van nam, hien nay
dan thuc » dan toc, am thuc
hoc viet » hoc hien
nang hoc » nang doc, nang luc, dong hoc
tap nang » tai nang, phap nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( canh ((tac nang) or (tap nang)) hoc viet nam ) or ( dan thuc nang hoc viet nam ))) or ((( doanh tai vung hoc ((phien nam) or (mien bac)) ) or ( doanh tai vung hoc vien nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( canh ((tac nang) OR (tap nang)) hoc viet nam ) OR ( dan thuc nang hoc viet nam ))) OR ((( doanh tai vung hoc ((phien nam) OR (mien bac)) ) OR ( doanh tai vung hoc vien nam )))).
• Adding a wildcard symbol may retrieve word variants: (((( canh ((tac nang) or (tap nang)) hoc viet nam ) or ( dan thuc nang hoc viet nam ))) or ((( doanh tai vung hoc ((phien nam) or (mien bac)) ) or ( doanh tai vung hoc vien nam ))))*.