Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nuoc sach » nguoi sach, hoc sach, cuoc cach
kho tang » cao tang
cau treo » cau theo, cau tren, cau triet
ky tang » ky nang, ky dang, ky trong
hieu ha » hieu hoa, hieu va, hieu ca
thuc va » thuc vat, thuc dan, thuc day
dan vai » dan va, dan tai, dan vat
vai cau » va cau, van cau, vai cac
va dan » ca dan, va dao, va dau
ha am » hoa am, ha nam, ha lam

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