Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly quang
ly vang » ly hang, ly van, ly quang
luc va » duc va, tuc va, loc va
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((ly nang) OR (ly vang)) ((x hoi) or (o hoi)). hieu van cam luc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ly nang) OR (ly vang)) ((x hoi) OR (o hoi)). hieu van cam luc va hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ly nang) OR (ly vang)) ((x hoi) or (o hoi)). hieu van cam luc va hanh vai cua tre*".