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 » so viet, hoi viet, oi viet
cac cam » cac cau, cac cay, cac ham
cac cap » cao cap, cac cau, cac cay
lang va » lang van, hang va, lang ha
lanh va » hanh va, anh va, doanh va
lan va » luan va, lan van, ban va
cap co » cap cho, tap co, cap do
co soi » cot soi, co so, co hoi

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