Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
su sach » so sach, vu sach
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (co sach)) ky ((nang xa) OR (lang xa)) hoi. hieu va cao xuc va danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) ky ((nang xa) OR (lang xa)) hoi. hieu va cao xuc va danh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (co sach)) ky ((nang xa) OR (lang xa)) hoi. hieu va cao xuc va danh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (co sach)) ky ((nang xa) OR (lang xa)) hoi. hieu va cao xuc va danh vi cua triet*.