Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh chao, trinh co, tinh cao
trinh cau » trinh chao, trinh tu, trinh han
chat ban » nhat ban, chat ran, cua ban
hoc viet » hoc hien
van cac » van hac, van cau, van bac
van van » van ban, tan van, san van
cao van » cac van, dao van, cao dang
oi viet » hoi viet, o viet, cuoi viet
cau van » chau van, cuu van, cac van
ban vat » bang vat, ben vat, ban va
van va » van vat, ban va, van ha
lam co » nam co
co hoi » co loi
cay co » tay co, cay cong
ca cay » cua cay, cac cay, ca cac
vat ca » vat cua, vat va, vat co
cam co » nam co, cam lo, cam o
cac co » cac cong
co oi » co loi, co doi, co toi
va ca » va cac, va cao, va cai

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 chat ban vat ca cay ((co hoi) or (co hoc)) viet nam ) or ( chuong trinh cau van va ca cay co oi viet nam ))) or ( chuong trinh cao van van cac ((((cam co) or (lam co))) or (cac co)) ((so viet) OR (hoc viet)) nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh chat ban vat ca cay ((co hoi) OR (co hoc)) viet nam ) OR ( chuong trinh cau van va ca cay co oi viet nam ))) OR ( chuong trinh cao van van cac ((((cam co) OR (lam co))) OR (cac co)) ((so viet) OR (hoc viet)) nam ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh chat ban vat ca cay ((co hoi) or (co hoc)) viet nam ) or ( chuong trinh cau van va ca cay co oi viet nam ))) or ( chuong trinh cao van van cac ((((cam co) or (lam co))) or (cac co)) ((so viet) OR (hoc viet)) nam ))*".