Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh co
trinh cau » trinh chat, trinh tu, trinh han
soi viet » so viet, hoi viet, oi viet
lang van » dang van, tang van, hoang van
trinh do » trinh ky
ban hanh » ban hang
dao hanh » dao thanh, dang hanh, dao van
cao hanh » cao anh, bao hanh, cao danh
cac nam » bac nam, cac cam, cac ham
van cac » van hac, van cau, van bac
cac tri » cac tro, cac toi, cac thi
nam co » nam cao, nam bo, nam so
co soi » cot soi, co so, co hoi
tri co » tai co, trinh co

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 ((cao hanh) or (((dao hanh) or (ban hanh)))) va cac nam co soi viet nam ) or ( chuong ((((trinh cau) or (trinh do))) or (trinh chao)) lang van cac tri co soi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh ((cao hanh) OR (((dao hanh) OR (ban hanh)))) va cac nam co soi viet nam ) OR ( chuong ((((trinh cau) OR (trinh do))) OR (trinh chao)) lang van cac tri co soi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh ((cao hanh) or (((dao hanh) or (ban hanh)))) va cac nam co soi viet nam ) or ( chuong ((((trinh cau) or (trinh do))) or (trinh chao)) lang van cac tri co soi viet nam ))*.