Perhaps you should try some spelling variations:
lam thuc » lam thuoc, am thuc, nam thuc
danh dai » danh dau, danh di, danh sai
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te san
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
va lam » van lam, va lap
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((te sac) OR (te cac))) or (ve cac)) ky nang x hoi. hieu va lam thuc va danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((te sac) OR (te cac))) OR (ve cac)) ky nang x hoi. hieu va lam thuc va danh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((te sac) OR (te cac))) or (ve cac)) ky nang x hoi. hieu va lam thuc va danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((((te sac) OR (te cac))) or (ve cac)) ky nang x hoi. hieu va lam thuc va danh dai cua tre*.