Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
kho tang » cao tang
hieu hoa » tieu hoa, dieu hoa, hiep hoa
cau treo » cau theo, cau tren, cau triet
ky tang » ky nang, ky dang, ky trong
thuc va » thuc vat, thuc dan, thuc day
dan vai » dan va, dan tai, dan vat
vai cau » va cau, van cau, vai cac
hieu ha » hieu va, hieu ca, hieu xa
va dan » ca dan, va dao, va dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ((ky tang) OR (kho tang)) xa hoi. ((hieu ha) or (hieu hoa)) am thuc va dan vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((ky tang) OR (kho tang)) xa hoi. ((hieu ha) OR (hieu hoa)) am thuc va dan vai cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((ky tang) OR (kho tang)) xa hoi. ((hieu ha) or (hieu hoa)) am thuc va dan vai cau treo".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((ky tang) OR (kho tang)) xa hoi. ((hieu ha) or (hieu hoa)) am thuc va dan vai cau treo*.