Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
hieu vu » hieu va, hieu ve, hieu su
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
vu chat » va chat, ve chat, du chat
tu cach » tu cac
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

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