Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
vien cac » vien bach, vien dai, vien da
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
ve cac » va cac
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua
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: thuat sach y nang x hoi. hieu ((ve cham) OR (((ve cac) OR (vien cac)))) luc va hanh va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x hoi. hieu ((ve cham) or (((ve cac) OR (vien cac)))) luc va hanh va cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x hoi. hieu ((ve cham) or (((ve cac) OR (vien cac)))) luc va hanh va cua tre*.