Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
hanh sinh » hanh tinh, hinh sinh, hanh chinh
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x hoi. hieu ((va cham) or (ve chat)) xuc va ((hanh sinh) OR (hanh dinh)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((va cham) OR (ve chat)) xuc va ((hanh sinh) OR (hanh dinh)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((va cham) or (ve chat)) xuc va ((hanh sinh) OR (hanh dinh)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ((va cham) or (ve chat)) xuc va ((hanh sinh) OR (hanh dinh)) cua tre*.