Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va cham » va tham
va chat » van chat, va phat, cao chat
hang de » hoang de, hanh de, hang di
y nang » ky nang, ly nang, v nang
uoc va » nuoc va, duoc va, quoc va
loc va » hoc va, luc va
de cua » le cua, te cua, dieu cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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: thu sach y nang x hoi. lieu ((va cham) OR (va chat)) ((uoc va) OR (loc va)) hang de cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. lieu ((va cham) OR (va chat)) ((uoc va) or (loc va)) hang de cua te~".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. lieu ((va cham) OR (va chat)) ((uoc va) or (loc va)) hang de cua te*.