Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
tai cua » thai cua, tai cuc, tri cua
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
tu sach » thu sach, su sach, te sach
vu nang » vuc nang, va nang, vu dang
van cam » van nam, van lam, van cau
y nang » ky nang, ly nang, v nang

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: tu sach ((y nang) OR (vu nang)) xa hoi. hieu van cam xuc ((va hanh) OR (va danh)) tai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (vu nang)) xa hoi. hieu van cam xuc ((va hanh) OR (va danh)) tai cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (vu nang)) xa hoi. hieu van cam xuc ((va hanh) OR (va danh)) tai cua viet*.