Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » va thanh, va danh, ban hanh
dao cua » dai cua, day cua, dan cua
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 ((cam xuc) OR (cam tu)) ((va hanh) OR (van hanh)) dao cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky nang xa hoi. hieu va ((cam xuc) or (cam tu)) ((va hanh) OR (van hanh)) dao cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sai ky nang xa hoi. hieu va ((cam xuc) or (cam tu)) ((va hanh) OR (van hanh)) dao cua tre*.