Perhaps you should try some spelling variations:
danh dai » danh di, danh sai, vanh dai
danh dau » lanh dao, hang dau, danh tu
hieu va » lieu va, hieu qua
thuc va » thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va am » va lam, va cam

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