Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hang vai » hang va, hang tai, hang hai
hieu van » hieu va, thien van, lieu va
xuc ban » cuc ban, quoc ban, xuat ban
vai cua » dai cua, hai cua, lai cua
duc ban » duc tan, duc van, dua ban
van lam » van nam
ly hang » ly quang
cua tre » cua te, cuu tre, cua triet

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 hang) or (ty xang)) xa hoi. hieu van lam ((xuc ban) or (duc ban)) hang vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ly hang) OR (ty xang)) xa hoi. hieu van lam ((xuc ban) OR (duc ban)) hang vai cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach ((ly hang) or (ty xang)) xa hoi. hieu van lam ((xuc ban) or (duc ban)) hang vai cua tre*.