Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cau » trinh chat, trinh chao, trinh tu
cuoi viet » nguoi viet, co viet, nuoc viet
hoc viet » hoc hien
cau lanh » cau danh, cay lanh, dau lanh
lan van » luan van, lang van, tan van
cao cay » cao cap, cho cay, tao cay
lanh va » hanh va, anh va, lanh dao
cao tay » cao tai, dao tay, bao tay
co cuoi » co nuoi, cho cuoc, co nguoi
lan va » luan va, lang va, ban va
va cao » va cac, va co, va dao
tay co » ty co, tay o
cay co » cac co, cay cong

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 cau ((lan va) or (lan van)) cao cay co hoc viet nam ) or ( chuong trinh cau lanh va cao cay co hoc viet nam ))) or ( chuong trinh cau ((lan va) or (lan van)) cao tay co cuoi viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh cau ((lan va) OR (lan van)) cao cay co hoc viet nam ) OR ( chuong trinh cau lanh va cao cay co hoc viet nam ))) OR ( chuong trinh cau ((lan va) OR (lan van)) cao tay co cuoi viet nam )).
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh cau ((lan va) or (lan van)) cao cay co hoc viet nam ) or ( chuong trinh cau lanh va cao cay co hoc viet nam ))) or ( chuong trinh cau ((lan va) or (lan van)) cao tay co cuoi viet nam ))*.