Perhaps you should try some spelling variations:
vanh dai » van dai, vanh tai, lanh dao
hanh dai » hanh tai, hanh dao, thanh dat
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
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 ((ty nang) OR (ty hang)) o hoi. hieu va cac xuc va ((hanh dai) OR (vanh dai)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty hang)) o hoi. hieu va cac xuc va ((hanh dai) or (vanh dai)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty hang)) o hoi. hieu va cac xuc va ((hanh dai) or (vanh dai)) cuu tre*.