Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
ban thanh » ban hanh, ban hang
cau phuc » cau truc, chau phu, huu phuc
cau treo » cau theo, cau tren, cau triet
hieu ve » hieu van
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
vi cau » va cau, ve cau, di cau

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: nuoc sach ky tang xa hoi. ((hieu ve) OR (hieu va)) cau phuc ((va hanh) OR (ban thanh)) vi cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ky tang xa hoi. ((hieu ve) OR (hieu va)) cau phuc ((va hanh) or (ban thanh)) vi cau treo~".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ky tang xa hoi. ((hieu ve) OR (hieu va)) cau phuc ((va hanh) or (ban thanh)) vi cau treo*.