Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh co
trinh cao » trinh co, trinh cau, tinh cao
soi viet » so viet, hoi viet, oi viet
dang vat » dang van, dong vat, dang nhat
chao lan » cao lan, chao van, chao yang
cac cot » cac co, cac cong, cac chat
cot soi » cot loi, cong soi
cac coc » cac cuoc, cac co, cac toc
coc soi » cong soi
dang va » dang van, hang va, dung va
ca cac » cua cac, va cac
lan va » luan va, lanh va, lan van
va ca » va cac, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( chuong trinh chao lan va ca cac cot soi viet nam ) or ( chuong trinh chao lan va ca cac coc soi viet nam ))) or ( chuong trinh cao ((dang va) OR (dang vat)) ca cac cot soi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh chao lan va ca cac cot soi viet nam ) OR ( chuong trinh chao lan va ca cac coc soi viet nam ))) OR ( chuong trinh cao ((dang va) OR (dang vat)) ca cac cot soi viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh chao lan va ca cac cot soi viet nam ) or ( chuong trinh chao lan va ca cac coc soi viet nam ))) or ( chuong trinh cao ((dang va) OR (dang vat)) ca cac cot soi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh chao lan va ca cac cot soi viet nam ) or ( chuong trinh chao lan va ca cac coc soi viet nam ))) or ( chuong trinh cao ((dang va) OR (dang vat)) ca cac cot soi viet nam ))*.