Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh han, trinh phan
trinh cau » trinh chao, trinh tu, trinh han
soi viet » so viet, hoi viet, oi viet
trinh co » trinh do, trinh cong, trinh hoa
lanh va » hanh va, anh va, doanh va
cac cam » cad cam, cac cap, cac cau
co soi » cot soi, co so, co hoi
cam co » cac co, nam co, cay co
lan va » luan va, lan van, lang va
cap co » cap cho, tap co, cac co
cap do » cau do

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 ((lanh va) OR (lanh dao)) cac cam co soi viet nam ) or ( chuong ((trinh cau) or (((trinh chat) or (trinh luat)))) lan va cac ((cap co) or (cap do)) soi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh co ((lanh va) OR (lanh dao)) cac cam co soi viet nam ) OR ( chuong ((trinh cau) OR (((trinh chat) OR (trinh luat)))) lan va cac ((cap co) OR (cap do)) soi viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh co ((lanh va) OR (lanh dao)) cac cam co soi viet nam ) or ( chuong ((trinh cau) or (((trinh chat) or (trinh luat)))) lan va cac ((cap co) or (cap do)) soi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh co ((lanh va) OR (lanh dao)) cac cam co soi viet nam ) or ( chuong ((trinh cau) or (((trinh chat) or (trinh luat)))) lan va cac ((cap co) or (cap do)) soi viet nam ))*.