Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
su sach » vu sach
va hanh » va thanh, va danh, ban hanh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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 (so sach)) ty nang x hoi. hieu va cham xuc ((va hanh) or (van hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty nang x hoi. hieu va cham xuc ((va hanh) OR (van hanh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang x hoi. hieu va cham xuc ((va hanh) or (van hanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty nang x hoi. hieu va cham xuc ((va hanh) or (van hanh)) vi cua tre*.