Perhaps you should try some spelling variations:
hanh vin » hanh tin, hanh van, thanh vien
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
hieu su » hieu sau, tieu su, hieu so
sach lo » sach dao, sach doi, sach hoi
hieu vu » hieu va, hieu ve, dieu vu
lo nang » ho nang, ly nang, loai nang
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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 x hoi. ((hieu vu) or (hieu su)) cham xuc va ((hanh vin) or (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach lo nang x hoi. ((hieu vu) OR (hieu su)) cham xuc va ((hanh vin) OR (hanh vi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach lo nang x hoi. ((hieu vu) or (hieu su)) cham xuc va ((hanh vin) or (hanh vi)) cuu tre*.