Perhaps you should try some spelling variations:
chuong trinh » cong trinh
thai viet » thi viet, mai viet, tai vien
lang van » dang van, tang van, hoang van
trinh tu » trinh ky, trinh do
tai viet » thi viet, mai viet, tai lieu
soi viet » hoi viet, doi viet, noi viet
trinh co » trinh do, trinh cong, trinh hoa
cao danh » cao dang, cau danh, cuon danh
tu lang » cu lang, tu lanh, xu lang
cao anh » cao dang, cao tang, cao bang
oi viet » hoi viet, o viet, cuoi viet
so viet » hoc viet
cay cot » cay coc, cay cat, cay ot
cac cot » cac co, cac cong, cac chat
cay co » cac co, tay co, cay cong
ca cay » cua cay, cac cay, ca cac
van ca » van cau, van cua, dan ca
co lan » cao lan, co ban, co dan
lan va » luan va, lanh va, lan van
va cao » va co, va dao, va bao
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 co lan va cac ((cay cot) OR (cac cot)) ((soi viet) OR (so viet)) nam ) OR ( chuong trinh ((cao danh) OR (cao anh)) va cao ((cay cot) OR (cac cot)) ((thai viet) OR (tai viet)) nam ))) OR ( chuong trinh tu lang van ca cay co oi viet nam ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh co lan va cac ((cay cot) or (cac cot)) ((soi viet) OR (so viet)) nam ) or ( chuong trinh ((cao danh) or (cao anh)) va cao ((cay cot) or (cac cot)) ((thai viet) or (tai viet)) nam ))) or ( chuong trinh tu lang van ca cay co oi viet nam ))~".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh co lan va cac ((cay cot) or (cac cot)) ((soi viet) OR (so viet)) nam ) or ( chuong trinh ((cao danh) or (cao anh)) va cao ((cay cot) or (cac cot)) ((thai viet) or (tai viet)) nam ))) or ( chuong trinh tu lang van ca cay co oi viet nam ))*.