Perhaps you should try some spelling variations:
chuong trinh » cong trinh
chat quang » chat luong, pham quang
trinh nhat » trinh chat, trinh nha, trinh nhap
chat hang » chat chong, chat phong, chat huong
nhat danh » nhat hanh, nhat anh, nhat ban
trinh tu » trinh do
soi viet » so viet, hoi viet, noi viet
doi viet » dai viet, hoi viet, do viet
oi viet » hoi viet, o viet, cuoi viet
cac cam » cad cam, cac cap, cac cay
cac cau » cac mau, bac cau, ca cau
va caoi » va cai, va chuoi
danh va » doanh va, hanh va, anh va
cau co » cau do, cay co, dau co
va cao » va cac, va co, va dao
cac co » cac cong
mau co » mai co, dau co, ma co
au co » dau co, su co, tu co
co oi » co hoi, co loi, co doi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( cong ((trinh tu) or (trinh ky)) danh va ((cac cam) or (cac cau)) co oi viet nam ) or ((( chuong trinh nhat danh ((va cao) or (va caoi))c ((mau co) OR (au co)) soi viet nam ) or ( chuong trinh ((chat hang) or (chat quang)) ((va cao) or (va caoi)) ((cau co) or (cac co)) doi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong ((trinh tu) OR (trinh ky)) danh va ((cac cam) OR (cac cau)) co oi viet nam ) OR ((( chuong trinh nhat danh ((va cao) OR (va caoi))c ((mau co) OR (au co)) soi viet nam ) OR ( chuong trinh ((chat hang) OR (chat quang)) ((va cao) OR (va caoi)) ((cau co) OR (cac co)) doi viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong ((trinh tu) or (trinh ky)) danh va ((cac cam) or (cac cau)) co oi viet nam ) or ((( chuong trinh nhat danh ((va cao) or (va caoi))c ((mau co) OR (au co)) soi viet nam ) or ( chuong trinh ((chat hang) or (chat quang)) ((va cao) or (va caoi)) ((cau co) or (cac co)) doi viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong ((trinh tu) or (trinh ky)) danh va ((cac cam) or (cac cau)) co oi viet nam ) or ((( chuong trinh nhat danh ((va cao) or (va caoi))c ((mau co) OR (au co)) soi viet nam ) or ( chuong trinh ((chat hang) or (chat quang)) ((va cao) or (va caoi)) ((cau co) or (cac co)) doi viet nam ))))*.