Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ban hang » ngan hang
hang vai » hang va, hang tai, hang hai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
duc ban » duc tan, duc van, dua ban
vai cua » dai cua, hai cua, lai cua
va cam » va cham, va cac, va cai
va cao » va cac, va dao, va bao
va co » vo co

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. lieu ((va cam) OR (((va cao) OR (va co)))) duc ban hang vai cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. lieu ((va cam) or (((va cao) OR (va co)))) duc ban hang vai cua vat~".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. lieu ((va cam) or (((va cao) OR (va co)))) duc ban hang vai cua vat*.