Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
sach nang » cach mang, sach dung, sach danh
nam thuc » nam thuoc, am thuc, nam thu
lang xa » lang ha, dang xay, lang van
long ha » dong ha, cong ha, dong hoa
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
va nam » van nam, ha nam, va nay
va dan » ca dan, va dao, va dau
ca cuu » cap cuu, cua cuu, ca cua

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 nang ((lang xa) or (long ha)) hoi. hieu va nam thuc va dan ca cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach nang ((lang xa) OR (long ha)) hoi. hieu va nam thuc va dan ca cuu tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach nang ((lang xa) or (long ha)) hoi. hieu va nam thuc va dan ca cuu tre*.