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

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 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 thai 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 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 thai 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 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 thai viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh cau lang va tao cay co hai 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 thai viet nam ))*.