Perhaps you should try some spelling variations:
van cham » van chat, van tham, va cham
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh tai, hanh van
cham xuc » cam xuc, chat xuc, cham soc
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
lo nang » ho nang, loai nang, cao nang
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc 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 ((lo nang) OR (ly nang)) xa hoi. hieu van cham xuc va ((hanh vai) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((lo nang) OR (ly nang)) xa hoi. hieu van cham xuc va ((hanh vai) OR (hanh va)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((lo nang) OR (ly nang)) xa hoi. hieu van cham xuc va ((hanh vai) or (hanh va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((lo nang) OR (ly nang)) xa hoi. hieu van cham xuc va ((hanh vai) or (hanh va)) cuu tre*.