Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
hieu ve » hieu va
sach ky » sac ky, sach y, sach ty
cuc ban » cac ban, cuu ban, duc ban
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
vai cua » dai cua, hai cua, lai cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky lang xa hoi. ((hieu ve) or (hieu van)) cam ((cuc ban) or (cua ban)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky lang xa hoi. ((hieu ve) OR (hieu van)) cam ((cuc ban) OR (cua ban)) hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ky lang xa hoi. ((hieu ve) or (hieu van)) cam ((cuc ban) or (cua ban)) hanh vai cua te*.