Perhaps you should try some spelling variations:
te sach » toc sach
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
lua tre » cua tre, luy tre, dua tren
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
va don » va dong, va doc, va do
vi lua » vi luu
x hoi » xa hoi, x ho
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: te sach y nang ((((x hoi) OR (5 hoi))) OR (o hoi)). hieu va cac xuc va don vi lua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((((x hoi) or (5 hoi))) or (o hoi)). hieu va cac xuc va don vi lua tre*.