Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh han, trinh co, trinh giao
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh co, trinh cau, tinh cao
cao lanh » cao lan, cao anh, cao danh
cac cach » cai cach, cuoc cach, va cach
cac cay » ca cay, cac cam, cac cap
oi viet » hoi viet, o viet, cuoi viet
cac cac » ca cac, cac bac, cac cam
lanh va » hanh va, anh va, lanh dao
lan va » luan va, lan van, lang va
cay co » cac co, tay co, cay cong
co oi » co hoi, co loi, co doi

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 lanh va ((cac cac) OR (cac cach)) co oi viet nam ) OR ( chuong ((trinh chat) OR (trinh chao)) lan va cac cay co oi viet nam ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cao lanh va ((cac cac) OR (cac cach)) co oi viet nam ) OR ( chuong ((trinh chat) OR (trinh chao)) lan va cac cay co oi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao lanh va ((cac cac) OR (cac cach)) co oi viet nam ) OR ( chuong ((trinh chat) OR (trinh chao)) lan va cac cay co oi viet nam ))*.