Perhaps you should try some spelling variations:
chuong trinh » cong trinh
thai viet » thi viet, mai viet, tai vien
trinh cao » trinh chao, trinh cau, tinh cao
soi viet » so viet, hoi viet, oi viet
trinh co » trinh do, trinh cong, trinh hoa
tai viet » thi viet, mai viet, tai lieu
coc soi » cot soi, cong soi
tap coc » tap co, tap cac, tap cong
cac tap » cac cap, cac tac, cac tai
van cac » van hac, van cau, van bac
cac cay » ca cay, cac cam, cac cap
cay coc » cay co, cay cong
cau xay » cau giay
cao lan » cao van, cao dang, cao tang
lan van » luan van, lang van, tan van
co lan » co ban, co dan, co lao
lan va » luan va, lanh va, lang va
ky lan » ky dan, ky la
va cau » van cau, va dau, va cao
xay co » cay co, tay co, lay co

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