Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach y, sach tu, sach thu
van cac » van hac, van bac, dan cac
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
hang x » hoang xa, chang xu, hang nxb

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: toc sach ty ((hang x) OR (nang x)) hoi. hieu ((van cac) OR (van cau)) duc va thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty ((hang x) OR (nang x)) hoi. hieu ((van cac) or (van cau)) duc va thanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ty ((hang x) OR (nang x)) hoi. hieu ((van cac) or (van cau)) duc va thanh dai cua tre*.