Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh giao
trinh dao » trinh do, trinh da, trinh dan
trinh cau » trinh chat, trinh tu, trinh han
trinh co » trinh do, trinh cong, trinh hoa
soi viet » so viet, hoi viet, oi viet
dao hanh » dao thanh, dang hanh, ban hanh
van cac » van hac, van cau, van bac
hanh va » hang va, hanh vi
lan van » luan van, lang van, tan van
cay co » cac co, tay co, cay cong
co hoi » co loi
ca cau » cac cau, can cau, cua cau
va ca » va cac, va cao, va cai
tay o » tay 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 dao hanh va ca cau ((co hoi) or (co hoc)) viet nam ) or ( chuong ((trinh cau) or (((trinh chao) or (trinh co)))) lan van cac ((tay o) or (cay co)) soi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh dao hanh va ca cau ((co hoi) OR (co hoc)) viet nam ) OR ( chuong ((trinh cau) OR (((trinh chao) OR (trinh co)))) lan van cac ((tay o) OR (cay co)) soi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh dao hanh va ca cau ((co hoi) or (co hoc)) viet nam ) or ( chuong ((trinh cau) or (((trinh chao) or (trinh co)))) lan van cac ((tay o) or (cay co)) soi viet nam ))*.