Perhaps you should try some spelling variations:
trinh chat » tinh chat, trinh luat, trinh han
dung nhan » dung luan
trinh cao » trinh chao, trinh cau, tinh cao
nhan cac » nhan cach, phan cac, nhan mac
soi viet » hoi viet, oi viet, doi viet
trinh co » trinh do, trinh cong, trinh hoa
cac cay » ca cay, cac cam, cac cap
ky lanh » ky anh, ky danh, ky hanh
so viet » hoc viet
lanh va » hanh va, anh va, lanh dao
cac cau » cac mau, bac cau, ca cau
cay co » tay co, cay cong
co soi » cot soi, co hoi, co loi
cac co » cac cong
ca cac » cua cac
cau lo » cau do, cau o, cam lo
lo soi » lo so, mo soi
va ca » va cao, va cai, va cau

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 ky lanh va ca cac co so viet nam ) or ((( cong trinh co ban va cac cay co soi viet nam ) or ( chuong ((trinh cao) or (trinh chat)) dung nhan cac cau lo soi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh ky lanh va ca cac co so viet nam ) OR ((( cong trinh co ban va cac cay co soi viet nam ) OR ( chuong ((trinh cao) OR (trinh chat)) dung nhan cac cau lo soi viet nam )))).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh ky lanh va ca cac co so viet nam ) or ((( cong trinh co ban va cac cay co soi viet nam ) or ( chuong ((trinh cao) or (trinh chat)) dung nhan cac cau lo soi viet nam ))))*.