Perhaps you should try some spelling variations:
thanh dan » thanh san, thanh van, thanh dat
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
cau tren » cu tren, dau tren, cau treo
xuc ban » duc ban, cuc ban, quoc ban
va cham » va chat, va tham
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
ca tren » cu tren, la tren, co tren
o hoi » co hoi, o hoc, o hai

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: thu sach ty nang ((xa hoi) OR (o hoi)). hieu va cham xuc ban thanh dan ((cau tren) OR (ca tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang ((xa hoi) or (o hoi)). hieu va cham xuc ban thanh dan ((cau tren) OR (ca tren))~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang ((xa hoi) or (o hoi)). hieu va cham xuc ban thanh dan ((cau tren) OR (ca tren))*.