Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh dai » thanh hai, thanh tai, thanh dat
van thanh » ban thanh, van tuan
thuc van » thuc vat, thuc dan, thuc va
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
mang xa » lang xa, mang may, dang xay
ve nam » he nam, va nam, le nam

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: su sach y ((mang xa) OR (((nang ma) OR (tang ma)))) hoi. hieu ve nam thuc van thanh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((mang xa) or (((nang ma) OR (tang ma)))) hoi. hieu ve nam thuc van thanh dai cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach y ((mang xa) or (((nang ma) OR (tang ma)))) hoi. hieu ve nam thuc van thanh dai cua triet*.