Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cac » trinh cau, trinh chat, trinh chao
cac hanh » cac thanh, cac banh, cac hinh
soi viet » so viet, hoi viet, doi viet
cac lanh » cay lanh, cac banh, cac lang
hanh va » hang va, hanh vi
cac tai » cao tai, cac bai, cac dai
dao cac » do cac, sao cac, tao cac
cac cap » cao cap, cac cam, cac cau
oi viet » hoi viet, o viet, cuoi viet
tai co » mai co, tai so, tri co
co soi » cot soi, co so, co hoi
cap do » cau do
do soi » do moi, do son, do sai
do oi » do moi, do voi, do 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 cac hanh va cac tai co soi viet nam ) or ((( chuong trinh cac lanh dao cac cap do soi viet nam ) OR ( chuong trinh cac lanh dao cac cap do oi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cac hanh va cac tai co soi viet nam ) OR ((( chuong trinh cac lanh dao cac cap do soi viet nam ) OR ( chuong trinh cac lanh dao cac cap do oi viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cac hanh va cac tai co soi viet nam ) or ((( chuong trinh cac lanh dao cac cap do soi viet nam ) OR ( chuong trinh cac lanh dao cac cap do oi viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cac hanh va cac tai co soi viet nam ) or ((( chuong trinh cac lanh dao cac cap do soi viet nam ) OR ( chuong trinh cac lanh dao cac cap do oi viet nam ))))*.