Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh han, trinh phan
trinh san » trinh han, trinh quan, trinh toan
doanh va » doan va, doanh tai, doanh cua
san ban » sang ban, van ban, can ban
cau cay » chau cay, cau xay, dau cay
cac tay » cac cay, cac tac, cac tai
va cau » van cau, va dau, va cao
dan va » doan va, dan ca, doan van
han va » hang va, hanh va, nhan va
cac ty » cac ky, cac tu
co o » co so, co _
so o » so d
luat » luan, xuat

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 san ban va cau cay ((co o) or (so o)) viet nam ) or ((( chuong trinh chat ((dan va) OR (han va)) cac ty ((co o) or (so o)) viet nam ) or ( chuong trinh luat doanh va cac tay ((co o) or (so o)) viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh san ban va cau cay ((co o) OR (so o)) viet nam ) OR ((( chuong trinh chat ((dan va) OR (han va)) cac ty ((co o) OR (so o)) viet nam ) OR ( chuong trinh luat doanh va cac tay ((co o) OR (so o)) viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh san ban va cau cay ((co o) or (so o)) viet nam ) or ((( chuong trinh chat ((dan va) OR (han va)) cac ty ((co o) or (so o)) viet nam ) or ( chuong trinh luat doanh va cac tay ((co o) or (so o)) viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh san ban va cau cay ((co o) or (so o)) viet nam ) or ((( chuong trinh chat ((dan va) OR (han va)) cac ty ((co o) or (so o)) viet nam ) or ( chuong trinh luat doanh va cac tay ((co o) or (so o)) viet nam ))))*.