Perhaps you should try some spelling variations:
trinh cao » trinh chao, trinh cau, tinh cao
soi viet » hoi viet, oi viet, doi viet
trinh co » trinh cong, trinh hoa, trinh ky
dang vat » dang van, dong vat, dang nhat
trinh do » trinh ky
do lanh » do sanh, do danh, do anh
lanh va » hanh va, anh va, lanh dao
cac cau » cac mau, bac cau, ca cau
vat cac » vat cach, sat cac, tat cac
so viet » hoc viet
cac cay » ca cay, cac cam, cac cap
cot soi » cot loi, cong soi
cau lo » cau do, cau o, cam lo
co soi » co hoi, co loi, co doi
cac co » cac cong
ca cac » cua cac
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 do lanh va ca cac co so viet nam ) or ((( cong trinh co ban va cac cay ((co soi) OR (cot soi)) viet nam ) or ( chuong trinh cao dang vat cac cau lo soi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh do lanh va ca cac co so viet nam ) OR ((( cong trinh co ban va cac cay ((co soi) OR (cot soi)) viet nam ) OR ( chuong trinh cao dang vat cac cau lo soi viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh do lanh va ca cac co so viet nam ) or ((( cong trinh co ban va cac cay ((co soi) OR (cot soi)) viet nam ) or ( chuong trinh cao dang vat cac cau lo soi viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh do lanh va ca cac co so viet nam ) or ((( cong trinh co ban va cac cay ((co soi) OR (cot soi)) viet nam ) or ( chuong trinh cao dang vat cac cau lo soi viet nam ))))*.