Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
cham duc » pham duc, cham soc, pham duy
cua tre » cua te, cuu tre, cua triet
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
te sac » te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te sach)) ky lang xa hoi. hieu va cham duc ((va danh) OR (va dinh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te sach)) ky lang xa hoi. hieu va cham duc ((va danh) OR (va dinh)) thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te sach)) ky lang xa hoi. hieu va cham duc ((va danh) OR (va dinh)) thai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te sach)) ky lang xa hoi. hieu va cham duc ((va danh) OR (va dinh)) thai cua tre*.