Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
vuc van » luc van, thuc van, chuc van
duc van » duc va, duc tan, duc manh
hanh va » hang va
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang xa hoi. lieu va cam ((vuc van) or (duc van)) ((hanh vi) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. lieu va cam ((vuc van) OR (duc van)) ((hanh vi) OR (hanh va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. lieu va cam ((vuc van) or (duc van)) ((hanh vi) or (hanh va)) cua tre*.