Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
hanh dai » hanh tai, hanh dao, vanh dai
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky ((nang xa) OR (lang xa)) hoi. hieu van cham soc va hanh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((nang xa) OR (lang xa)) hoi. hieu van cham soc va hanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) OR (lang xa)) hoi. hieu van cham soc va hanh dai cua triet*.