Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh cha » thanh ha, thanh nha, thanh phan
thu sach » tu sach, thuat sach, thuoc sach
khac dan » khac duan, nhac dan, khau dan
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
va khac » va khao, va kha, vu khac
dan ban » van ban, can ban, dan ba
cha cua » chat cua, cha chua, ca cua
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thu sach)) y nang x hoi. lieu va khac dan ban thanh cha cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) y nang x hoi. lieu va khac dan ban thanh cha cua viet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) y nang x hoi. lieu va khac dan ban thanh cha cua viet*.