Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
soc van » hoc van, oc van, soc dan
sac van » cac van, san van, sat van
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
anh vi » anh va, anh ve, anh vu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu su cham ((soc van) OR (sac van)) ((anh vi) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu su cham ((soc van) OR (sac van)) ((anh vi) OR (hanh vi)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu su cham ((soc van) OR (sac van)) ((anh vi) or (hanh vi)) cua tre*".