Perhaps you should try some spelling variations:
chat luc » chat xuc, chat lua, nhan luc
hanh vai » hanh va, hanh tai, hanh van
tu sach » thu sach, su sach, te sach
va chat » van chat, va phat, cao chat
cuu tre » cua tre, cau tren, cau treo
y nang » ly nang, v nang, may nang
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y nang) or (ky nang)) xa hoi. lieu va chat luc va ((hanh vai) OR (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) xa hoi. lieu va chat luc va ((hanh vai) OR (hanh vi)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (ky nang)) xa hoi. lieu va chat luc va ((hanh vai) OR (hanh vi)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (ky nang)) xa hoi. lieu va chat luc va ((hanh vai) OR (hanh vi)) cuu tre*.