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
doanh va » doan va, doanh tai, doanh cua
soi viet » so viet, oi viet, doi viet
hoi viet » hai viet, oi viet, thai viet
cac van » cac dan
cac cac » cac cach, ca cac, cac cam
cac tay » cac cay, cac tac, cac tai
danh va » hanh va, anh va, dan va
cac bac » cac bai, cac ban, cac cach
cac co » cac cong
co soi » cot soi, co so, co loi
bo soi » bo doi, bo noi, bo so
van va » van vat, van van, ban va
co hoi » co hoc, co loi
tay co » ty co, cay co, tay 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 cong ((danh va) OR (doanh va)) cac tay co hoi 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) OR (doanh va)) cac tay co hoi 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) OR (doanh va)) cac tay co hoi 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) OR (doanh va)) cac tay co hoi 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 ))))*.