Perhaps you should try some spelling variations:
trinh cham » trinh chat, trinh chao, trinh han
trinh cau » trinh chat, trinh chao, trinh tu
cau doanh » cac doanh, cau danh, cao doanh
chuc danh » chuc nganh, chuc nang, chu manh
doanh va » doan va, doanh tai, doanh cua
dai viet » dao viet, tai viet, dan viet
thuc dan » thuc vat
cham anh » pham anh, pham hanh, cham binh
mai viet » thi viet
cac cau » cac mau, bac cau, ca cau
da viet » dao viet, dan viet, va viet
cac cap » cao cap, cac cam, cac cay
cau co » cau do, cac co, cay co
va dao » ca dao
anh va » hanh va
co hoi » co loi
cap o » cap do, cap 1, cap 5

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 cau doanh va cac cap ((co hoi) or (co hoc)) viet nam ) or ((( chuong trinh cham anh va dao ((cap o) or (cap 2)) mai viet nam ) or ( chuong trinh ((((chuc danh) or (((thuc dan) OR (hoc dan))))) or (thuc hanh)) va cac cau co ((dai viet) or (da viet)) nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh cau doanh va cac cap ((co hoi) OR (co hoc)) viet nam ) OR ((( chuong trinh cham anh va dao ((cap o) OR (cap 2)) mai viet nam ) OR ( chuong trinh ((((chuc danh) OR (((thuc dan) OR (hoc dan))))) OR (thuc hanh)) va cac cau co ((dai viet) OR (da viet)) nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong trinh cau doanh va cac cap ((co hoi) or (co hoc)) viet nam ) or ((( chuong trinh cham anh va dao ((cap o) or (cap 2)) mai viet nam ) or ( chuong trinh ((((chuc danh) or (((thuc dan) OR (hoc dan))))) or (thuc hanh)) va cac cau co ((dai viet) or (da viet)) nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong trinh cau doanh va cac cap ((co hoi) or (co hoc)) viet nam ) or ((( chuong trinh cham anh va dao ((cap o) or (cap 2)) mai viet nam ) or ( chuong trinh ((((chuc danh) or (((thuc dan) OR (hoc dan))))) or (thuc hanh)) va cac cau co ((dai viet) or (da viet)) nam ))))*.