Perhaps you should try some spelling variations:
trinh khao » trinh kham, trinh khac, trinh thao
trinh chao » trinh chat, trinh han, trinh co
trinh khai » trinh kham, trinh han, trinh tai
doanh cua » doanh luan
cao doanh » cho doanh, cac doanh, cao danh
trinh cao » trinh co, trinh cau, tinh cao
cuoi viet » nguoi viet, co viet, nuoc viet
chao anh » cao anh, khao danh, chao yang
oi viet » hoi viet, o viet, gioi viet
cac cap » cao cap, cac cam, cac cau
cac nam » bac nam, cac cam, cac ham
danh va » doanh va, hanh va, dan va
cam co » cac co, nam co, cay co
co hoi » co loi
anh va » hanh va
lam co » nam co
cap co » cap cho, tap co, cap do
va cad » va cao, va cai, va cau
co oi » co loi, co doi, co toi

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 chao anh va cad ((cam co) or (lam co)) cuoi viet nam ) or ((( cong ((trinh khao) OR (trinh khai)) danh va cac nam ((co hoi) or (co hoc)) viet nam ) or ( cong trinh cao doanh cua cac cap co oi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh chao anh va cad ((cam co) OR (lam co)) cuoi viet nam ) OR ((( cong ((trinh khao) OR (trinh khai)) danh va cac nam ((co hoi) OR (co hoc)) viet nam ) OR ( cong trinh cao doanh cua cac cap co oi viet nam ))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh chao anh va cad ((cam co) or (lam co)) cuoi viet nam ) or ((( cong ((trinh khao) OR (trinh khai)) danh va cac nam ((co hoi) or (co hoc)) viet nam ) or ( cong trinh cao doanh cua cac cap co oi viet nam ))))*".