Perhaps you should try some spelling variations:
te sach » toc sach
ty nang » ky nang, ty hang, ty nong
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
soc va » hoc va, loc va, doc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((((ty nang) OR (ly nang))) or (ty xang)) xa hoi. hieu va cham soc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((((ty nang) OR (ly nang))) OR (ty xang)) xa hoi. hieu va cham soc va hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((((ty nang) OR (ly nang))) or (ty xang)) xa hoi. hieu va cham soc va hanh di cua tre*".