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
thai viet » thi viet, tai viet, mai viet
cau luan » cu luan, dau luan, lau luan
doi viet » dai viet, hoi viet, oi viet
tang van » dang van, hoang van, trong van
trinh su » trinh tu, trinh san, trinh cua
co thai » do thai, ca thai, co hai
tan van » tran van, dang van, tan tran
cau cay » chau cay, cau xay, dau cay
su luan » tu luan, luc luan
van cac » van hac, van cau, van bac
cac cau » cac mau, bac cau, ca cau
cay co » cac co, tay co, cay cong
cau co » cau do, cac co, dau co
co doi » cho doi, co dot, co dai

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 cao ((tan van) OR (tang van)) cau cay co thai viet nam ) or ((( chuong trinh su luan van cac cau co doi viet nam ) or ( chuong trinh cau luan van cac cau co doi viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cao ((tan van) OR (tang van)) cau cay co thai viet nam ) OR ((( chuong trinh su luan van cac cau co doi viet nam ) OR ( chuong trinh cau luan van cac cau co doi viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cao ((tan van) OR (tang van)) cau cay co thai viet nam ) or ((( chuong trinh su luan van cac cau co doi viet nam ) or ( chuong trinh cau luan van cac cau co doi viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao ((tan van) OR (tang van)) cau cay co thai viet nam ) or ((( chuong trinh su luan van cac cau co doi viet nam ) or ( chuong trinh cau luan van cac cau co doi viet nam ))))*.