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