Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh nhat » trinh chat, trinh nha, trinh nhap
nhat hanh » nhat ban, nhat minh
trinh cau » trinh chat, trinh chao, trinh tu
soi viet » so viet, oi viet, noi viet
doi viet » dai viet, oi viet, do viet
cau danh » cao danh, chuc danh, nam danh
cay cong » cac cong, cao cong, cau cong
hoi viet » hai viet, oi viet, thai viet
danh va » doanh va, anh va, dan va
hanh va » hang va, hanh vi
ca cay » cua cay, cac cay, ca cac
cau co » cay co, dau co, cau o
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 (doi viet)) nam ) or ( chuong trinh nhat hanh va cac ((((cau co) OR (cau do))) 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 (doi viet)) nam ) OR ( chuong trinh nhat hanh va cac ((((cau co) OR (cau do))) 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 (doi viet)) nam ) or ( chuong trinh nhat hanh va cac ((((cau co) OR (cau do))) 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 (doi viet)) nam ) or ( chuong trinh nhat hanh va cac ((((cau co) OR (cau do))) or (cac co)) hoi viet nam ))*.