Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cao » trinh chao, trinh cau, tinh cao
cay congt » cac cong, cao cong, cau cong
congt hai » cong hai, cong ha, cong thai
soi viet » hoi viet, doi viet, noi viet
cao lanh » cao lan, cao anh, cao danh
hai viet » thai viet, mai viet, tai viet
trinh tu » trinh ky, trinh do
cay cong » cac cong, cao cong, cau cong
trinh co » trinh do, trinh cong, trinh hoa
cho cay » cho cac, cho vay, cho can
tu lanh » tu hanh, tu lenh, tu manh
van cua » vang cua, ban cua, dan cua
cong oi » cong goi, cong noi, cong soi
lanh va » hanh va, anh va, lanh dao
so viet » hoc viet
cac cau » cac mau, bac cau, ca cau
cac cap » cao cap, cac cam, cac cay
oi viet » hoi viet, o viet, cuoi viet
va cho » van cho, va co, va che
van ca » van cau, van ha, tan ca
lan va » luan va, lan van, lang va
co lan » cao lan, co ban, co dan

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 co lan va ((cac cap) or (cac cau)) cong ((soi viet) or (so viet)) nam ) or ( chuong trinh cao lanh va cho cay congt hai viet nam ))) or ( chuong trinh tu lanh ((((van ca) or (van cua))) or (dan ca)) cay cong oi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh co lan va ((cac cap) OR (cac cau)) cong ((soi viet) OR (so viet)) nam ) OR ( chuong trinh cao lanh va cho cay congt hai viet nam ))) OR ( chuong trinh tu lanh ((((van ca) OR (van cua))) OR (dan ca)) cay cong oi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh co lan va ((cac cap) or (cac cau)) cong ((soi viet) or (so viet)) nam ) or ( chuong trinh cao lanh va cho cay congt hai viet nam ))) or ( chuong trinh tu lanh ((((van ca) or (van cua))) or (dan ca)) cay cong oi viet nam ))*.