Perhaps you should try some spelling variations:
cong moc » cong coc, cong mot, cong uoc
hien nam » phien nam, hien nay, vien nam
tap nang » tai nang, phap nang, cam nang
tac nang » tac vang, tai nang, tich nang
tien nam » tien lam, vien nam, mien nam
danh tac » canh tac, danh bac, danh thuc
moc tien » moc tren, hoc tien, mo tien
dung mot » dung mo, dung moi, dung co
tai dung » trai dung, thi dung, mai dung
hoc vien » hoc tieng, hoc vi
mot tan » mot lan, mot thanh, mot lang
tan nam » tang nam, van nam, dan nam
tac can » tac van, tac quan, tac vang

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 can ((hoc vien) or (hoc viet)) nam ) or ((((( doanh tai dung mot tan nam ) or ( doanh tai cong moc tien nam ))) or ((( danh ((tac nang) OR (tap nang)) hoc hien nam ) or ( danh tac ((trung hoc) or (trung quoc)) hien nam ))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh tac can ((hoc vien) OR (hoc viet)) nam ) OR ((((( doanh tai dung mot tan nam ) OR ( doanh tai cong moc tien nam ))) OR ((( danh ((tac nang) OR (tap nang)) hoc hien nam ) OR ( danh tac ((trung hoc) OR (trung quoc)) hien nam ))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh tac can ((hoc vien) or (hoc viet)) nam ) or ((((( doanh tai dung mot tan nam ) or ( doanh tai cong moc tien nam ))) or ((( danh ((tac nang) OR (tap nang)) hoc hien nam ) or ( danh tac ((trung hoc) or (trung quoc)) hien nam ))))))*".