Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cong » trinh dung
trinh cao » trinh chao, trinh cau, tinh cao
doi viet » dai viet, hoi viet, oi viet
trinh co » trinh do, trinh hoa, trinh ky
trinh tu » trinh ky, trinh do
hai viet » thai viet, mai viet, tai viet
cao hanh » dao hanh, cao anh, bao hanh
soi viet » so viet, hoi viet, oi viet
van cau » van dau, van hau, van chat
tu lanh » tu hanh, tu lenh, tu manh
cot hai » co hai, cot hat, cong hai
cay cot » cay coc, cac cot, cay cat
cot soi » cot loi, cong soi
cac cam » cad cam, cac cay, cac ham
luan va » luan van, luat va
cac cap » cao cap, cac cay, cac tap
hanh va » hang va, hanh vi
cac cau » cac mau, bac cau, ca cau
van ca » van cua, dan ca, van ha
co cay » cho cay, co cau, co may
cay co » cac co, tay co, cay cong
co doi » cho doi, co dot, co dai
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) or (trinh cong)) luan va ((((cac cap) or (cac cam))) or (cac cau)) cot soi viet nam ) or ( chuong trinh cao hanh va co cay cot hai viet nam ))) or ( chuong trinh tu lanh ((van ca) or (van cau)) cay co doi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong ((trinh co) OR (trinh cong)) luan va ((((cac cap) OR (cac cam))) OR (cac cau)) cot soi viet nam ) OR ( chuong trinh cao hanh va co cay cot hai viet nam ))) OR ( chuong trinh tu lanh ((van ca) OR (van cau)) cay co doi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (((( chuong ((trinh co) or (trinh cong)) luan va ((((cac cap) or (cac cam))) or (cac cau)) cot soi viet nam ) or ( chuong trinh cao hanh va co cay cot hai viet nam ))) or ( chuong trinh tu lanh ((van ca) or (van cau)) cay co doi viet nam ))*.