Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh nhap » trinh nha, trinh phap, trinh han
trinh nhat » trinh chat, trinh nha, trinh phat
trinh cau » trinh chat, trinh chao, trinh tu
doi viet » dai viet, oi viet, do viet
cac cong » cua cong
soi viet » so viet, oi viet, noi viet
cau cong » cuu cong, cao cong, cay cong
cau danh » cao danh, chuc danh, nam danh
hoi viet » hai viet, oi viet, thai viet
danh va » doanh va, hanh va, anh va
ca cau » cac cau, can cau, cua cau
vi cac » voi cac, vai cac, va cac
cau co » cau do, cac co, cay co
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 cau danh va ca cau cong ((soi viet) or (doi viet)) nam ) or ( chuong ((trinh nhat) or (trinh nhap)) hanh vi cac ((cau co) or (cac cong)) hoi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cau danh va ca cau cong ((soi viet) OR (doi viet)) nam ) OR ( chuong ((trinh nhat) OR (trinh nhap)) hanh vi cac ((cau co) OR (cac cong)) hoi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cau danh va ca cau cong ((soi viet) or (doi viet)) nam ) or ( chuong ((trinh nhat) or (trinh nhap)) hanh vi cac ((cau co) or (cac cong)) hoi viet nam ))*.