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
noi viet » noi tiet, oi viet, nhi viet
doi viet » dai viet, oi viet, do viet
soi viet » so viet, oi viet, si viet
cay cong » cac cong, cao cong, cau cong
cau danh » cao danh, chuc danh, nam danh
hoi viet » hai viet, oi viet, thai viet
hanh va » hang va, hanh vi
danh va » doanh va, anh va, dan va
ca cay » cua cay, cac cay, ca cac
cau co » cau do, cay co, dau co
cac co » cac cong
va ca » va cao, va cai, va cau

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 cay cong ((((soi viet) OR (noi viet))) or (doi viet)) nam ) or ( chuong ((trinh nhat) or (trinh nhap)) hanh va cac ((cau co) or (cac co)) hoi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cau danh va ca cay cong ((((soi viet) OR (noi viet))) OR (doi viet)) nam ) OR ( chuong ((trinh nhat) OR (trinh nhap)) hanh va cac ((cau co) OR (cac co)) hoi viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cau danh va ca cay cong ((((soi viet) OR (noi viet))) or (doi viet)) nam ) or ( chuong ((trinh nhat) or (trinh nhap)) hanh va cac ((cau co) or (cac co)) hoi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cau danh va ca cay cong ((((soi viet) OR (noi viet))) or (doi viet)) nam ) or ( chuong ((trinh nhat) or (trinh nhap)) hanh va cac ((cau co) or (cac co)) hoi viet nam ))*.