Perhaps you should try some spelling variations:
dang xay » dang van, van xay
lam thuc » lam thuoc, am thuc, nam thuc
lang xa » lang ha, lang van
thuc va » thuc vat, thuc dan, thuc day
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
va lam » van lam, va lap
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((lang xa) or (dang xay)) hoi. lieu va lam thuc va tinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((lang xa) OR (dang xay)) hoi. lieu va lam thuc va tinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu san ky ((lang xa) or (dang xay)) hoi. lieu va lam thuc va tinh vi cua tre*.