Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
nho thuc » nghe thuc, nhan thuc, choi thuc
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((lang xa) OR (dang xay)) hoi. hieu va nho thuc va hanh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((lang xa) OR (dang xay)) hoi. hieu va nho thuc va hanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((lang xa) OR (dang xay)) hoi. hieu va nho thuc va hanh dai cua triet*.