Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
su sach » vu sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
so sach » so sanh, bo sach, co sach
qua cau » quan cau, qua cac, qua cai
qua ca » qua cac, qua cua, qua cai
vi ve » va ve, gi ve, ve ve

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky lang xa hoi. hieu ((qua cau) OR (qua ca)) truc va hanh vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky lang xa hoi. hieu ((qua cau) or (qua ca)) truc va hanh vi ve triet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky lang xa hoi. hieu ((qua cau) or (qua ca)) truc va hanh vi ve triet*.