Perhaps you should try some spelling variations:
cam thuc » am thuc, nam thuc, cam thu
thanh vi » thanh va, thanh ve, nhanh vi
cua tre » cua te, cuu tre, cua triet
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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 lang xa hoi. ((hieu va) or (hieu qua)) cam thuc va ((thanh vi) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. ((hieu va) OR (hieu qua)) cam thuc va ((thanh vi) OR (hanh vi)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu va) or (hieu qua)) cam thuc va ((thanh vi) OR (hanh vi)) cua tre*".