Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
cac luoc » cac nuoc, cac cuoc, cac quoc
luoc van » luoc can, luoc va, luc van
doanh vi » doanh va, doan vi, doanh vien
te sach » toc sach
luy tre » luyen tre
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
vi luy » vi lua, vi luu
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang ((5 hoi) OR (o hoi)). lieu va cac luoc van doanh vi luy tre~".
• Adding a wildcard symbol may retrieve word variants: te sach v nang ((5 hoi) OR (o hoi)). lieu va cac luoc van doanh vi luy tre*.