Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban thanh » ban hanh, ban hang
thanh cha » thanh ha, thanh nha, thanh phan
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
hac dan » nhac dan, hoc dan, cac dan
dan ban » van ban, can ban, dan ba
cha cua » chat cua, cha chua, ca cua
y nang » ky nang, ly nang, v nang
va hac » van hac, va khac, va cac
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 (thuat sach)) y nang x hoi. lieu va hac dan ban thanh cha cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) y nang x hoi. lieu va hac dan ban thanh cha cua viet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) y nang x hoi. lieu va hac dan ban thanh cha cua viet*.