Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
thu sach » tu sach, thuat sach, thuoc sach
lap cuu » cap cuu, lap cua
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
cuu tre » cua tre, cau tren, cau treo
doc va » duoc va, hoc va, loc va
ma hoi » mai hoi, ma hoa, me hoi

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 dang ((ma hoi) OR (xa hoi)). hieu ve chat ((doc va) OR (duc va)) thanh lap cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky dang ((ma hoi) OR (xa hoi)). hieu ve chat ((doc va) or (duc va)) thanh lap cuu tre~".
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang ((ma hoi) OR (xa hoi)). hieu ve chat ((doc va) or (duc va)) thanh lap cuu tre*.