Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh sau » trinh san, trinh cau, trinh su
trinh cao » trinh chao, trinh co, trinh cau
soi viet » so viet, hoi viet, oi viet
cao lanh » cao lan, cao anh, cao danh
sau lan » dau luan
cac tai » cao tai, cac bai, cac dai
cac cay » ca cay, cac cam, cac cap
cac tay » cac tac, cac tap, cam tay
dao cac » do cac, sao cac, tao cac
lan va » luan va, lanh va, lan van
cam co » cac co, cay co, lam co
co soi » cot soi, co so, co hoi
nam co » nam cao, nam bo, nam so

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 dao cac ((cam co) or (nam co)) soi viet nam ) or ( chuong trinh sau lan va ((((cac tay) OR (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 dao cac ((cam co) OR (nam co)) soi viet nam ) OR ( chuong trinh sau lan va ((((cac tay) OR (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 dao cac ((cam co) or (nam co)) soi viet nam ) or ( chuong trinh sau lan va ((((cac tay) OR (cac cay))) or (cac tai)) co soi viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao lanh dao cac ((cam co) or (nam co)) soi viet nam ) or ( chuong trinh sau lan va ((((cac tay) OR (cac cay))) or (cac tai)) co soi viet nam ))*.