Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh chao, trinh co, tinh cao
trinh cau » trinh chao, trinh tu, trinh han
soi viet » so viet, hoi viet, doi viet
cao anh » cao dang, cao tang, cao bang
oi viet » hoi viet, o viet, cuoi viet
tay co » ty co, cay co
lan va » luan va, lanh va, lan van
anh va » hanh va
co oi » co hoi, co loi, co doi

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 anh va ((ca cac) or (cua cac)) co oi viet nam ) or ( chuong ((trinh cau) or (trinh chat)) lan va cac ((tay co) or (tay o)) soi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cao anh va ((ca cac) OR (cua cac)) co oi viet nam ) OR ( chuong ((trinh cau) OR (trinh chat)) lan va cac ((tay co) OR (tay o)) soi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao anh va ((ca cac) or (cua cac)) co oi viet nam ) or ( chuong ((trinh cau) or (trinh chat)) lan va cac ((tay co) or (tay o)) soi viet nam ))*.