Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh co
trinh cong » trinh dung
trinh cao » trinh co, trinh cau, tinh cao
trinh cac » trinh cau, trinh chat, trinh cham
cong danh » cuong danh, cong dan, cong thanh
soi viet » so viet, hoi viet, doi viet
cac cac » cac cach, ca cac, cac cam
cac cay » ca cay, cac cam, cac cap
cac van » cac dan
cac bac » cac bai, cac ban, cac cach
oi viet » hoi viet, o viet, cuoi viet
cac tay » cac tac, cac tai, cac tap
danh va » doanh va, hanh va, anh va
cac co » cac cong
co soi » cot soi, co so, co hoi
bo soi » bo doi, bo noi, bo so
van va » van vat, van van, ban 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 cong danh va ((cac tay) OR (cac cay)) co oi viet nam ) or ((( chuong ((trinh cao) or (trinh chao)) van va cac bac bo soi viet nam ) or ( chuong trinh cac van va cac cac co soi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cong danh va ((cac tay) OR (cac cay)) co oi viet nam ) OR ((( chuong ((trinh cao) OR (trinh chao)) van va cac bac bo soi viet nam ) OR ( chuong trinh cac van va cac cac co soi viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cong danh va ((cac tay) OR (cac cay)) co oi viet nam ) or ((( chuong ((trinh cao) or (trinh chao)) van va cac bac bo soi viet nam ) or ( chuong trinh cac van va cac cac co soi viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cong danh va ((cac tay) OR (cac cay)) co oi viet nam ) or ((( chuong ((trinh cao) or (trinh chao)) van va cac bac bo soi viet nam ) or ( chuong trinh cac van va cac cac co soi viet nam ))))*.