Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham duc » pham duc, cham soc, pham duy
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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) OR (thu sach)) ky nang xa hoi. hieu va cham duc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (thu sach)) ky nang xa hoi. hieu va cham duc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (thu sach)) ky nang xa hoi. hieu va cham duc va hanh vai cua tre*.