Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
vat dung » van dung, va dung, viet dung
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
dung co » dung cho, dung cong, dung cua
hieu ve » hieu va, hieu van
sac ky » cac ky
ve nam » he nam, va nam, le nam
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sac ky) OR (sai ky)) nang x hoi. hieu ve nam thuc vat dung co ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: so ((sac ky) or (sai ky)) nang x hoi. hieu ve nam thuc vat dung co ((cua tre) or (cuu tre))*.