Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh chao, trinh co, tinh cao
trinh cau » trinh chao, trinh tu, trinh han
soi viet » hoi viet, oi viet, doi viet
cao lanh » cao lan, cao anh, cao danh
cac cam » cad cam, cac cap, cac cau
lanh va » hanh va, anh va, lanh dao
so viet » hoc viet
cam co » cac co, nam co, cay co
lan va » luan va, lan van, lang va
cap co » cap cho, tap co, cac co
cap do » cau do

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