Perhaps you should try some spelling variations:
dang xay » dang van, van xay
nam thuc » nam thuoc, am thuc, nam thu
cuu tre » cua tre, cau tren, cau treo
thuc va » thuc vat, thuc dan, thuc day
lang xa » lang ha, lang van
vai cuu » vai cua
dan vai » dan va, dan tai, dan vat
hieu va » lieu va
va dan » ca dan, va dao, va dau
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc san ky ((lang xa) or (dang xay)) hoi. ((hieu va) or (hieu qua)) nam thuc va dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc san ky ((lang xa) OR (dang xay)) hoi. ((hieu va) OR (hieu qua)) nam thuc va dan vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc san ky ((lang xa) or (dang xay)) hoi. ((hieu va) or (hieu qua)) nam thuc va dan vai cuu tre*.