Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang vi » hang va, hanh vi, hang di
va hang » van hang, va nang, va lang
cam tuc » cam xuc, cam tu, nam thuc
sach ty » sach y, sach tu, sach thu
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
tuc va » thuc va, truc va, tuc xa
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: so sach ty ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu qua)) cam tuc va hang vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((nang xa) OR (lang xa)) hoi. ((hieu ve) OR (hieu qua)) cam tuc va hang vi cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ty ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu qua)) cam tuc va hang vi cua triet*.