Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cau » trinh chat, trinh chao, trinh tu
dai viet » mai viet, dao viet, da viet
dau lanh » dat lanh, dau tranh, dau luan
cau lanh » cau danh, cay lanh, cau nganh
hoi viet » oi viet, thai viet, cuoi viet
tai viet » thi viet, mai viet, tai lieu
hai viet » thai viet, mai viet, han viet
cau lang » cac lang, cau long, cu lang
dao cay » dao tay, dau cay, dao cac
lang va » lang van, hang va, lang ha
tao cac » tao bac, tao cao, tai cac
tao cay » tao cao, tao may, tao cau
cac co » cac cong
co hoi » co hoc, co loi
va tao » va bao, va cao, va tac
cay co » tay co, cay cong
va dao » ca dao

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 cau lang va tao cay co ((hai viet) OR (dai viet)) nam ) or ( chuong trinh cau lang va tao cac co hoi viet nam ))) or ( chuong trinh ((cau lanh) or (dau lanh)) va dao cay co ((t((hai viet) OR (dai viet))) or (tai viet)) nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh cau lang va tao cay co ((hai viet) OR (dai viet)) nam ) OR ( chuong trinh cau lang va tao cac co hoi viet nam ))) OR ( chuong trinh ((cau lanh) OR (dau lanh)) va dao cay co ((t((hai viet) OR (dai viet))) OR (tai viet)) nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh cau lang va tao cay co ((hai viet) OR (dai viet)) nam ) or ( chuong trinh cau lang va tao cac co hoi viet nam ))) or ( chuong trinh ((cau lanh) or (dau lanh)) va dao cay co ((t((hai viet) OR (dai viet))) or (tai viet)) nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh cau lang va tao cay co ((hai viet) OR (dai viet)) nam ) or ( chuong trinh cau lang va tao cac co hoi viet nam ))) or ( chuong trinh ((cau lanh) or (dau lanh)) va dao cay co ((t((hai viet) OR (dai viet))) or (tai viet)) nam ))*.