Perhaps you should try some spelling variations:
xach tay » canh tay
nam thuc » nam thuoc, am thuc, nam thu
vat dung » van dung, va dung, viet dung
dung doi » huong doi, dung tai, dung co
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
qua nam » quan nam, cua nam, quang nam
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((xach tay) or (sach y)) ((nang xa) OR (lang xa)) hoi. hieu qua nam thuc vat dung doi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach y)) ((nang xa) OR (lang xa)) hoi. hieu qua nam thuc vat dung doi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((xach tay) or (sach y)) ((nang xa) OR (lang xa)) hoi. hieu qua nam thuc vat dung doi cuu tre*".