Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
y nang » ky nang, ly nang, v nang
va dau » va dao
vi cau » va cau, di cau, viet cau
ve cau » ke cau, va cau, ve cac

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: vu sach y nang xa hoi. lieu va dau tuc van hanh ((vi cau) OR (ve cau)) tren~.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. lieu va dau tuc van hanh ((vi cau) or (ve cau)) tren*.