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