Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
thu sach » tu sach, thuat sach, thuoc sach
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va

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 y ((nang x) or (dang xay)) hoi. hieu ((va cam) OR (va cao)) xuc va thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang x) OR (dang xay)) hoi. hieu ((va cam) OR (va cao)) xuc va thanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang x) or (dang xay)) hoi. hieu ((va cam) OR (va cao)) xuc va thanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang x) or (dang xay)) hoi. hieu ((va cam) OR (va cao)) xuc va thanh lai cua tre*.