Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, nham thu
toc sach » hoc sach, doc sach, thuoc sach
qua nham » qua nhat, qua cham, sua nham
sach ky » sac ky, sach y, sach ty
lang xa » dang xay, lang van
lang ha » long ha
thuc va » thuc vat, thuc dan, thuc day
dan dai » dat dai, can dai, dan dat
va dan » ca dan, va dao, va dau

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 ky ((lang xa) OR (lang ha)) hoi. hieu qua nham thuc va dan dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky ((lang xa) OR (lang ha)) hoi. hieu qua nham thuc va dan dai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((lang xa) OR (lang ha)) hoi. hieu qua nham thuc va dan dai cua triet*.