Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh soc » thanh son, nhanh soc, thanh hoc
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
van hanh » ban hanh, van anh, van ban
toc sach » hoc sach, doc sach, thuoc sach
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
soc van » hoc van, oc van, sac van
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua

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) OR (toc sach)) y ((nang xa) OR (lang xa)) hoi. hieu van thanh soc van hanh di cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y ((nang xa) or (lang xa)) hoi. hieu van thanh soc van hanh di cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y ((nang xa) or (lang xa)) hoi. hieu van thanh soc van hanh di cua triet*.