Perhaps you should try some spelling variations:
chuong trinh » cong trinh
chuan doan » chan doan
cuay doan » chan doan, cua dan, quan doan
trinh cay » trinh may, trinh cac, trinh bay
trinh cau » trinh chat, trinh chao, trinh tu
cay cong » cac cong, cao cong, cau cong
cau ban » can ban, cac ban, cuu ban
cac tap » cac cap, cac tac, cac tai
so viet » hoc viet
cay ban » can ban, cac ban, tay ban
tac cay » tac can, tao cay, cac cay
cong so » cong san, cong hoa
cay co » cac co, tay co
o viet » hoc viet
ca cay » cua cay, cac cay, ca cac
va ca » va cao, va cai, va cau
co o » co _, so o

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) OR (chuan doan)) va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cay cong so viet nam ))) or ( chuong trinh cau ban va tac cay co o viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh ((cuay doan) OR (chuan doan)) va cac tap co so viet nam ) OR ( chuong trinh cay ban va ca cay cong so viet nam ))) OR ( chuong trinh cau ban va tac cay co o viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh ((cuay doan) OR (chuan doan)) va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cay cong so viet nam ))) or ( chuong trinh cau ban va tac cay co o viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh ((cuay doan) OR (chuan doan)) va cac tap co so viet nam ) or ( chuong trinh cay ban va ca cay cong so viet nam ))) or ( chuong trinh cau ban va tac cay co o viet nam ))*.