Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh thai » nhanh thai, hinh thai, hanh tai
hieu van » hieu va, thien van, lieu va
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
cac luc » cau luc, coc luc, cac nuoc
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va

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 y ((nang xa) or (lang xa)) hoi. hieu van cac luc va hanh thai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (lang xa)) hoi. hieu van cac luc va hanh thai cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (lang xa)) hoi. hieu van cac luc va hanh thai cua triet*.