Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
vai cuu » vai cua
dan vai » dan va, dan tai, dan vat
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
ky danh » ky anh, ky dang
ky tang » ky nang, ky dang, kho tang
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam

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: thuoc sach ((ky tang) OR (ky danh)) xa hoi. hieu ve cam ((xuc va) OR (tuc va)) dan vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((ky tang) or (ky danh)) xa hoi. hieu ve cam ((xuc va) OR (tuc va)) dan vai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((ky tang) or (ky danh)) xa hoi. hieu ve cam ((xuc va) OR (tuc va)) dan vai cuu tre*.