Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cao » trinh chao, trinh co, trinh cau
choi viet » hoi viet, chi viet, thoai viet
trinh cac » trinh cau, trinh chat, trinh chao
cuoi viet » nguoi viet, co viet, nuoc viet
cac doanh » cac dan, cac dang, van doanh
soi viet » so viet, hoi viet, oi viet
doanh va » doan va, doanh tai, doanh cua
cac tap » cac cap, cac tac, cac tai
lan bao » luan bao, van bao, san bao
cao cap » cao chat
cao lan » cao van, cao dang, cao tang
co soi » cot soi, co so, co hoi
cap do » cau do

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cac doanh va cac tap co soi viet nam ) OR ( chuong trinh cao lan bao cao cap do ((choi viet) OR (cuoi viet)) nam ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cac doanh va cac tap co soi viet nam ) or ( chuong trinh cao lan bao cao cap do ((choi viet) OR (cuoi viet)) nam ))~".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cac doanh va cac tap co soi viet nam ) or ( chuong trinh cao lan bao cao cap do ((choi viet) OR (cuoi viet)) nam ))*.