Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky lang xa hoi. hieu ve cam ((luc va) or (thuc va)) hanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ve cam ((luc va) OR (thuc va)) hanh vi va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ve cam ((luc va) or (thuc va)) hanh vi va triet*.