Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ly » sach y, sach lo, sach ty
cua tre » cua te, cua triet, dua tren
luc van » luoc van, luu van, duc van
cau luc » cau truc, cau phuc
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
ve cau » ke cau, va cau, ve cac
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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 ly nang ((x hoi) OR (o hoi)). hieu ve cau luc van hanh kem ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((x hoi) or (o hoi)). hieu ve cau luc van hanh kem ((cua tre) or (cuu tre))*.