Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
sach ly » sach y, sach lo, sach hay
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
va hoi » xa hoi, va hoc, va hoa
ve am » va am

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: tu ((sach ly) OR (sach ty)) hang va hoi. hieu ve am thuc va hanh di ((cua triet) OR (su triet))~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach ty)) hang va hoi. hieu ve am thuc va hanh di ((cua triet) or (su triet))*.