Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
gioi viet » gian viet, gia viet, cuoi viet
trinh cao » trinh chao, trinh co, trinh cau
trinh cac » trinh cau, trinh chao, trinh cham
chat ban » nhat ban, chat ran, cua ban
van cau » van dau, van hau, van chat
van cac » van hac, van bac, dan cac
cao lan » cao van, cao dang, cao tang
cac van » cac dan
cao cao » cao cap, bao cao, tao cao
ban vat » bang vat, ben vat, ban va
so viet » hoc viet
van va » van vat, van van, ban va
cao co » cao cho, cac co, co co
ca cao » ca dao, cu cao, ca cac
vat ca » vat cua, vat va, vat co
cay co » cac co, tay co, cay cong
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 chat ban vat ca cao cao h((gioi viet) or (nguoi viet)) nam ) or ( chuong trinh cac van va ca cao co ((gioi viet) or (nguoi viet)) nam ))) or ( chuong trinh cao lan ((van cac) or (van cau)) cay co so viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh chat ban vat ca cao cao h((gioi viet) OR (nguoi viet)) nam ) OR ( chuong trinh cac van va ca cao co ((gioi viet) OR (nguoi viet)) nam ))) OR ( chuong trinh cao lan ((van cac) OR (van cau)) cay co so viet nam )).
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh chat ban vat ca cao cao h((gioi viet) or (nguoi viet)) nam ) or ( chuong trinh cac van va ca cao co ((gioi viet) or (nguoi viet)) nam ))) or ( chuong trinh cao lan ((van cac) or (van cau)) cay co so viet nam ))*.