Perhaps you should try some spelling variations:
chuong trinh » cong trinh
chat quang » chat luong, pham quang
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh chao, trinh cau, tinh cao
soi viet » so viet, hoi viet, doi viet
quang va » quang van, quan va, quang ma
trinh co » trinh do, trinh cong, trinh hoa
oi viet » hoi viet, o viet, cuoi viet
cau xay » cau giay
cau cay » chau cay, dau cay, ca cay
dao ca » dao cac, dao cao, dao cau
co soi » cot soi, co so, co hoi
cac co » cac cong
ca cac » cua cac, va cac
lan va » luan va, lanh va, lan van
va ca » va cac, va cao, va cai
co oi » co hoi, co loi, co doi

You may be able to get more results by adjusting your search query.

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