Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cau » trinh chat, trinh chao, trinh tu
trinh cao » trinh chao, trinh co, tinh cao
soi viet » so viet, hoi viet, oi viet
lanh va » hanh va, lanh dao, doanh va
cac tai » cao tai, cac bai, cac dai
cac cay » ca cay, cac cam, cac cap
cau lan » cau lanh, cao lan, sau lan
lan va » luan va, lan van, lang va
co soi » cot soi, co so, co hoi
nam co » nam cao, nam bo, nam so
cam co » cac co, cay co, lam co
anh va » hanh va

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