Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
soc van » hoc van, sac van, soc dan
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
oc van » hoc van, luoc van, quoc van
anh vi » hanh vi, anh va, anh ve

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

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