Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
co sach » bo sach, cuon sach, hoc sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
ca viet » va viet, co viet, hoa viet
vi ca » vit ca, li ca, va ca

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: ((vu sach) OR (co sach)) ky lang xa hoi. hieu va cac xuc ((va danh) OR (va hanh)) vi ca viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (co sach)) ky lang xa hoi. hieu va cac xuc ((va danh) OR (va hanh)) vi ca viet~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (co sach)) ky lang xa hoi. hieu va cac xuc ((va danh) OR (va hanh)) vi ca viet*.