Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
dang xay » dang van, van xay
cuu tre » cua tre, cau tren, cau treo
dan tai » van tai, dan thi, han tai
dan vai » dan va, dan vat, den vai
thuc va » thuc vat, thuc dan, thuc day
qua nam » quan nam, cua nam, quang nam
xay hoi » xa hoi, tay hoi, cay phoi
dan ky » van ky
san ky » sang ky, van ky, ban 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) or (dan ky)) dang xay hoi. hieu qua nam thuc va ((dan vai) or (dan tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((san ky) OR (dan ky)) dang xay hoi. hieu qua nam thuc va ((dan vai) OR (dan tai)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc ((san ky) or (dan ky)) dang xay hoi. hieu qua nam thuc va ((dan vai) or (dan tai)) cuu tre*.