Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cau » trinh chat, trinh chao, trinh tu
trinh cao » trinh chao, trinh co, tinh cao
trinh han » trinh quan
cong san » cong tac
soi viet » so viet, hoi viet, oi viet
cong so » cong hoa
lan van » luan van, lang van, tan van
cao lan » cao van, cao dang, cao tang
va cao » va cac, va co, va dao
van ca » van cau, van cua, dan ca
ca tay » cam tay, ha tay, ca cay
va ca » va cac, va cai, va cau
o soi » mo soi, o suoi, o hoi
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 cao lan van ca tay o soi viet nam ) or ( chuong ((trinh cau) or (trinh han)) lan ((va ca) OR (va cao)) cao ((cong so) or (cong san)) viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cao lan van ca tay o soi viet nam ) OR ( chuong ((trinh cau) OR (trinh han)) lan ((va ca) OR (va cao)) cao ((cong so) OR (cong san)) viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cao lan van ca tay o soi viet nam ) or ( chuong ((trinh cau) or (trinh han)) lan ((va ca) OR (va cao)) cao ((cong so) or (cong san)) viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao lan van ca tay o soi viet nam ) or ( chuong ((trinh cau) or (trinh han)) lan ((va ca) OR (va cao)) cao ((cong so) or (cong san)) viet nam ))*.