Perhaps you should try some spelling variations:
trinh chat » tinh chat, trinh luat, trinh han
trinh chuc » trinh thuc, trinh chu, trinh phuc
trinh cham » trinh chao, trinh han, trinh phan
chuc danh » chuc nganh, thuc hanh, chuc nang
cay doanh » vay doanh, cac doanh, ly doanh
cao doanh » cho doanh, cac doanh, cao danh
dai viet » dao viet, tai viet, da viet
mai viet » thi viet
hoi viet » hai viet, oi viet, thai viet
cac cap » cac cam, cac cay, cac tap
cac cau » cac mau, bac cau, ca cau
cao cap » cao chat
danh va » doanh va, hanh va, dan va
co dai » co dan, do dai
cau co » cau do, cac co, cay co
cap co » cap cho, tap co, cap do
co hoi » co hoc, co loi
anh va » hanh va
va cao » va co, va dao, va bao
o mai » o lai, o hai, o tai
cap o » cap do, cap 2, cap 1

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 ((cay doanh) or (cao doanh)) va cac cap co hoi viet nam ) or ((( chuong ((trinh cham) OR (trinh chat)) anh va cao cap o mai viet nam ) or ( chuong trinh chuc danh va cac cau co dai viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh ((cay doanh) OR (cao doanh)) va cac cap co hoi viet nam ) OR ((( chuong ((trinh cham) OR (trinh chat)) anh va cao cap o mai viet nam ) OR ( chuong trinh chuc danh va cac cau co dai viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong trinh ((cay doanh) or (cao doanh)) va cac cap co hoi viet nam ) or ((( chuong ((trinh cham) OR (trinh chat)) anh va cao cap o mai viet nam ) or ( chuong trinh chuc danh va cac cau co dai viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong trinh ((cay doanh) or (cao doanh)) va cac cap co hoi viet nam ) or ((( chuong ((trinh cham) OR (trinh chat)) anh va cao cap o mai viet nam ) or ( chuong trinh chuc danh va cac cau co dai viet nam ))))*.