Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
chat lanh » hat lanh, thuat lanh, nha lanh
lanh sao » lanh dao, lanh sang, anh so
soi viet » so viet, hoi viet, doi viet
cac cap » cao cap, cac cam, cac cau
sao cac » sat cac, tao cac
oi viet » hoi viet, o viet, cuoi viet
cac dai » cac dan, can dai, bac dai
cao anh » cao dang, cao tang, cao bang
cac anh » cac banh, ca anh, cac nganh
cap do » cau do
co soi » cot soi, co so, co hoi
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 anh) or (cao anh)) va ((cac dai) or (cac bai)) co soi viet nam ) or ( chuong trinh chat lanh sao cac cap do oi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh ((cac anh) OR (cao anh)) va ((cac dai) OR (cac bai)) co soi viet nam ) OR ( chuong trinh chat lanh sao cac cap do oi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh ((cac anh) or (cao anh)) va ((cac dai) or (cac bai)) co soi viet nam ) or ( chuong trinh chat lanh sao cac cap do oi viet nam ))*.