Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cao » trinh chao, trinh co, tinh cao
trinh cau » trinh chat, trinh chao, trinh tu
trinh san » trinh han, trinh quan, trinh toan
hai viet » thai viet, mai viet, tai viet
san luan » dan luan, tang luan, hang luan
soi viet » hoi viet, oi viet, doi viet
cau giay » cuu giai, cac giai
van hao » van ha, van bao, van hai
so viet » hoc viet
cot soi » cot loi, cong soi
cay so » cay mo, cao so
cay co » cac co, tay co, cay cong
cay o » cay mo, cay ot, chay o

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 cao) or (trinh cau)) ban va ((cau xay) or (cau giay)) cot soi viet nam ) or ((( chuong trinh san luan ((van hao) OR (van dao)) ((cay o) or (cay so)) hai viet nam ) or ( chuong trinh san luan ((van hao) OR (van dao)) cay co so viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong ((trinh cao) OR (trinh cau)) ban va ((cau xay) OR (cau giay)) cot soi viet nam ) OR ((( chuong trinh san luan ((van hao) OR (van dao)) ((cay o) OR (cay so)) hai viet nam ) OR ( chuong trinh san luan ((van hao) OR (van dao)) cay co so viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong ((trinh cao) or (trinh cau)) ban va ((cau xay) or (cau giay)) cot soi viet nam ) or ((( chuong trinh san luan ((van hao) OR (van dao)) ((cay o) or (cay so)) hai viet nam ) or ( chuong trinh san luan ((van hao) OR (van dao)) cay co so viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong ((trinh cao) or (trinh cau)) ban va ((cau xay) or (cau giay)) cot soi viet nam ) or ((( chuong trinh san luan ((van hao) OR (van dao)) ((cay o) or (cay so)) hai viet nam ) or ( chuong trinh san luan ((van hao) OR (van dao)) cay co so viet nam ))))*.