Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dinh vai » dinh van, dinh vi, dinh va
vai cua » dai cua, hai cua, lai cua
va dinh » van dinh, va kinh, va tinh
sach ty » sach y, sach tu, sach thu
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu qua)) cam xuc va dinh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((nang xa) OR (nang ma)) hoi. ((hieu ve) OR (hieu qua)) cam xuc va dinh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu qua)) cam xuc va dinh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu qua)) cam xuc va dinh vai cua triet*.