Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
thu nang » thi nang, thu hang, thu bang
doan van » doan va, hoang van, luan van
van doan » van doanh, van toan, van hoan
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
cuu tre » cau tren, cau treo
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, vuc van
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cua triet, dua tren

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 van doan van ((cuu tre) OR (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 van doan van ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sach thu nang xa hoi. ((hieu ve) or (hieu van)) cham xuc van doan van ((cuu tre) OR (cua tre))*.