Perhaps you should try some spelling variations:
hang vai » hang va, hang tai, hang hai
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
vai cua » dai cua, hai cua, lai cua
dua ban » dia ban, cua ban, qua ban
van cam » van nam, van lam, van cau
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: tu sach ((ly hang) or (ty xang)) xa hoi. hieu van cam ((xuc ban) or (dua ban)) hang vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly hang) OR (ty xang)) xa hoi. hieu van cam ((xuc ban) OR (dua ban)) hang vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly hang) or (ty xang)) xa hoi. hieu van cam ((xuc ban) or (dua ban)) hang vai cua tre*.