Perhaps you should try some spelling variations:
cham vuc » cham soc, pham duc, cham cuu
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
vuc van » duc van, luc van, thuc van
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu tu cham vuc van hanh vi ((cua tre) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu tu cham vuc van hanh vi ((cua tre) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu tu cham vuc van hanh vi ((cua tre) OR (va triet))*.