Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
hanh cad » hanh cac, hanh cat, hanh cap
cad chat » cao chat, cac chat, van chat
sach ly » sach y, sach lo, sach ty
lang xa » lang ha, dang xay, lang van
sang ma » tang ma, nang ma, sang tao
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: toc sach ly ((lang xa) OR (sang ma)) hoi. hieu van nam thuc va hanh cad chat triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ly ((lang xa) OR (sang ma)) hoi. hieu van nam thuc va hanh cad chat triet*".