Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cao tuoi » cho tuoi, cao tai, cao thi
thuc day » thuc dan, thuc vat
danh dai » danh dau, danh di, danh sai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cao loi » co loi, ngao loi
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan
va am » va lam, va cam

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((cao loi) OR (cao tuoi)). hieu va am ((thuc va) OR (thuc day)) danh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((cao loi) OR (cao tuoi)). hieu va am ((thuc va) or (thuc day)) danh dai cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((cao loi) OR (cao tuoi)). hieu va am ((thuc va) or (thuc day)) danh dai cua triet*.