Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, ban hanh
ty nang » ky nang, ty xang, ty hang
va danh » va dinh, va dan, dia danh
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
di cua » dai cua, doi cua, de cua
ve cam » ve cham, ve cac, va cam
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi

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