Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
va nham » va cham, va tham, va kham
va nha » va nho, ve nha
sac ky » cac ky, sai ky

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) or (sac ky)) lang xa hoi. hieu ((va nham) OR (va nha)) thuc va hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) lang xa hoi. hieu ((va nham) OR (va nha)) thuc va hanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) lang xa hoi. hieu ((va nham) OR (va nha)) thuc va hanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) lang xa hoi. hieu ((va nham) OR (va nha)) thuc va hanh dai cua triet*.