Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
thu nang » thi nang, thu hang, thu bang
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
dan cua » dan ca, ban cua, dai cua
van cua » vang cua, ban cua, nan cua
va doan » va doanh, van doan, va dan
tu sach » thu sach, su sach, te sach
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc va doan ((van cua) OR (dan cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu nang xa hoi. ((hieu ve) or (hieu van)) cham xuc va doan ((van cua) OR (dan cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach thu nang xa hoi. ((hieu ve) or (hieu van)) cham xuc va doan ((van cua) OR (dan cua)) tre*.