Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cao » trinh chao, trinh cau, tinh cao
soi viet » so viet, hoi viet, noi viet
lanh van » lang van, anh van, canh van
trinh tu » trinh ky, trinh do
hai viet » thai viet, mai viet, tai viet
cao lanh » cao lan, cao anh, cao danh
trinh co » trinh do, trinh cong, trinh hoa
doi viet » dai viet, hoi viet, do viet
oi viet » hoi viet, o viet, cuoi viet
co luan » co quan, cu luan, o luan
luan va » luan van, luat va
cac cap » cao cap, cac cay, cac tap
cot hai » co hai, cot hat, cong hai
cay cot » cay coc, cac cot, cay cat
cac cau » cac mau, bac cau, ca cau
lanh va » hanh va, anh va, lanh dao
tu lanh » tu hanh, tu lenh, tu manh
cac ham » cac hat, cac nhan, cac chat
cac cam » cad cam, cac cay, cac cach
van ca » van cau, van cua, dan ca
cay co » cac co, tay co, cay cong
co doi » cho doi, co dot, co dai
co cay » cho cay, co cau, co may
ca cay » cua cay, cac cay, ca cac
va co » vo 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 co luan va ((((cac cap) or (((cac cam) OR (cac ham))))) or (cac cau)) cot ((soi viet) or (oi viet)) nam ) or ( chuong trinh cao lanh va co cay cot hai viet nam ))) or ( chuong trinh tu lanh van ca cay co doi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh co luan va ((((cac cap) OR (((cac cam) OR (cac ham))))) OR (cac cau)) cot ((soi viet) OR (oi viet)) nam ) OR ( chuong trinh cao lanh va co cay cot hai viet nam ))) OR ( chuong trinh tu lanh van ca cay co doi viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh co luan va ((((cac cap) or (((cac cam) OR (cac ham))))) or (cac cau)) cot ((soi viet) or (oi viet)) nam ) or ( chuong trinh cao lanh va co cay cot hai viet nam ))) or ( chuong trinh tu lanh van ca cay co doi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh co luan va ((((cac cap) or (((cac cam) OR (cac ham))))) or (cac cau)) cot ((soi viet) or (oi viet)) nam ) or ( chuong trinh cao lanh va co cay cot hai viet nam ))) or ( chuong trinh tu lanh van ca cay co doi viet nam ))*.