Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh via » hanh vi, hanh va, hanh ve
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
xuc va » tuc va, luc va, xac va
anh va » hanh va
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: thuat sach ky nang x hoi. hieu ve cac ((xuc va) OR (duc va)) ((hanh via) OR (anh va)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang x hoi. hieu ve cac ((xuc va) OR (duc va)) ((hanh via) or (anh va)) cua te~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang x hoi. hieu ve cac ((xuc va) OR (duc va)) ((hanh via) or (anh va)) cua te*.