Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
hanh va » hang va, hanh vi
xuc van » duc van, luc van, xuc ban
lam xuc » cam xuc, lam duoc
van lam » van nam
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (toc sach)) ky nang xa hoi. hieu van lam xuc van hanh va ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) ky nang xa hoi. hieu van lam xuc van hanh va ((cua te) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) ky nang xa hoi. hieu van lam xuc van hanh va ((cua te) or (cuu tre))*.