Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
sach lo » sach dao, sach doi, sach hoi
hanh va » hang va, hanh vi
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
lo nang » ho nang, ly nang, loai 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 xa hoi. ((hieu ve) OR (hieu va)) 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 xa hoi. ((hieu ve) OR (hieu va)) 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 xa hoi. ((hieu ve) OR (hieu va)) cham xuc va ((hanh vai) or (hanh va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach lo nang xa hoi. ((hieu ve) OR (hieu va)) cham xuc va ((hanh vai) or (hanh va)) cuu tre*.