Perhaps you should try some spelling variations:
trinh chat » tinh chat, trinh luat, trinh han
trinh may » trinh ky, trinh han, trinh ly
pham hanh » pham thanh, pham anh, pham hang
trinh cau » trinh chao, trinh tu, trinh han
may doanh » vay doanh, ly doanh, van doanh
dai viet » mai viet, dao viet, da viet
hai viet » thai viet, mai viet, han viet
tai viet » thi viet, mai viet, tai lieu
do nguoi » dao nguoi, doi nguoi, o nguoi
doanh va » doan va, doanh tai, doanh cua
cham anh » pham anh, cham binh, cham tinh
dao cap » cao cap, day cap, dao cac
cac cau » cac mau, bac cau, ca cau
danh va » hanh va, anh va, dan va
cac cap » cao cap, cac cam, cac cay
cap do » cau do
va dao » ca dao
cau co » cau do, cac co, cay co
o hai » co hai, so hai, o lai
cap o » cap 2, 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 may doanh va cac cap do nguoi viet nam ) or ((( chuong trinh ((cham anh) or (pham hanh)) va dao cap o hai viet nam ) or ( chuong ((trinh cau) or (trinh chat)) danh va cac cau co ((dai viet) OR (tai viet)) nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh may doanh va cac cap do nguoi viet nam ) OR ((( chuong trinh ((cham anh) OR (pham hanh)) va dao cap o hai viet nam ) OR ( chuong ((trinh cau) OR (trinh chat)) danh va cac cau co ((dai viet) OR (tai viet)) nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong trinh may doanh va cac cap do nguoi viet nam ) or ((( chuong trinh ((cham anh) or (pham hanh)) va dao cap o hai viet nam ) or ( chuong ((trinh cau) or (trinh chat)) danh va cac cau co ((dai viet) OR (tai viet)) nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong trinh may doanh va cac cap do nguoi viet nam ) or ((( chuong trinh ((cham anh) or (pham hanh)) va dao cap o hai viet nam ) or ( chuong ((trinh cau) or (trinh chat)) danh va cac cau co ((dai viet) OR (tai viet)) nam ))))*.