Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh giao
trinh cao » trinh cau, tinh cao, trinh cho
soi viet » so viet, doi viet, noi viet
cau giay » cuu giai, cac giai
trinh co » trinh do, trinh cong, trinh hoa
hoi viet » hai viet, thai viet, cuoi viet
dan van » dang van, doan van, dao van
cay coc » cay co, cay cong
tay cac » tai cac, tay bac, tap cac
van hac » van hoc, van ha, van hai
cac tay » cac cay, cac tac, cac tai
oi viet » o viet, cuoi viet, gioi viet
hac cay » cac cay, hoc cay, tac cay
co dan » co ban, ca dan, cao dang
ky lan » ky dan, ky la
lan va » luan va, lanh va, lan van
co hoi » co hoc, co loi

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) or (trinh chao)) lan va cac tay cac ((soi viet) OR (oi viet)) nam ) or ( chuong trinh co dan van hac cay coc ((soi viet) OR (oi viet)) nam ))) or ( chuong trinh ky lan va ((cau xay) or (cau giay)) co hoi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong ((trinh cao) OR (trinh chao)) lan va cac tay cac ((soi viet) OR (oi viet)) nam ) OR ( chuong trinh co dan van hac cay coc ((soi viet) OR (oi viet)) nam ))) OR ( chuong trinh ky lan va ((cau xay) OR (cau giay)) co hoi viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong ((trinh cao) or (trinh chao)) lan va cac tay cac ((soi viet) OR (oi viet)) nam ) or ( chuong trinh co dan van hac cay coc ((soi viet) OR (oi viet)) nam ))) or ( chuong trinh ky lan va ((cau xay) or (cau giay)) co hoi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong ((trinh cao) or (trinh chao)) lan va cac tay cac ((soi viet) OR (oi viet)) nam ) or ( chuong trinh co dan van hac cay coc ((soi viet) OR (oi viet)) nam ))) or ( chuong trinh ky lan va ((cau xay) or (cau giay)) co hoi viet nam ))*.