Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cuay » trinh cua, trinh chuan, trinh luat
cuay doan » chuan doan, chan doan, cua dan
trinh cay » trinh may, trinh cac, trinh bay
trinh cau » trinh chat, trinh chao, trinh tu
cao cong » cac cong, cao dang, cua cong
cau ban » can ban, cac ban, cuu ban
cong so » cong san, cong hoa
cay ban » can ban, cac ban, tay ban
so viet » hoc viet
cac tap » cac cap, cac tac, cac tai
ca cao » ca dao, cu cao, ca cac
cay co » tay co, cay cong
cac co » cac cong
o viet » hoc viet
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 cuay doan va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cao cong so viet nam ))) or ( chuong trinh cau ban va tac ((cay co) OR (cac co)) o viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh cuay doan va cac tap co so viet nam ) OR ( chuong trinh cay ban va ca cao cong so viet nam ))) OR ( chuong trinh cau ban va tac ((cay co) OR (cac co)) o viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh cuay doan va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cao cong so viet nam ))) or ( chuong trinh cau ban va tac ((cay co) OR (cac co)) o viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh cuay doan va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cao cong so viet nam ))) or ( chuong trinh cau ban va tac ((cay co) OR (cac co)) o viet nam ))*.