Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nay thuc » nam thuc, cay thuc, day thuc
thuc cay » thuc day, thuc can, thuc cao
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cay dan » cac dan, ca dan, cay lanh
dan vai » dan va, dan tai, dan vat
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
va nay » va ngay, va cay

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 (hoc cac)) ky nang xa hoi. hieu va nay thuc cay dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc cac)) ky nang xa hoi. hieu va nay thuc cay dan vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc cac)) ky nang xa hoi. hieu va nay thuc cay dan vai cuu tre*.