Perhaps you should try some spelling variations:
dam thuc » am thuc, dan thuc, nam thuc
danh dan » danh dau, canh dan, sanh dan
dang dan » dang dang, dang van, dung dan
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
te sai » te tai, te bai, te lai
sai ky » sac ky
cam tu » cam thu, nam tu, dam tu

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 sai ky nang xa hoi. hieu va ((dam thuc) OR (cam tu)) va ((danh dan) OR (dang dan)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky nang xa hoi. hieu va ((dam thuc) or (cam tu)) va ((danh dan) OR (dang dan)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sai ky nang xa hoi. hieu va ((dam thuc) or (cam tu)) va ((danh dan) OR (dang dan)) cua tre*.