Perhaps you should try some spelling variations:
danh dai » danh di, danh sai, vanh dai
danh dau » lanh dao, hang dau, danh tu
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
ve cac » va cac, vien cac
qua am » quan am, qua ap, cua am

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: ((te sac) OR (ve cac)) ky nang x ho. hieu qua am thuc va ((danh dai) OR (danh dau)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (ve cac)) ky nang x ho. hieu qua am thuc va ((danh dai) OR (danh dau)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (ve cac)) ky nang x ho. hieu qua am thuc va ((danh dai) OR (danh dau)) cua tre*.