Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
vu sach » vu bach, su sach, vu khach
xuc van » duc van, luc van, vuc van
lam xuc » cam xuc, lam duoc
van lam » van nam
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, xa hoi, ma hoa
vi ca » vit ca, va ca, vi ha
li ca » ly ca

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 ((ly nang) OR (ty xang)) ma hoi. hieu van lam xuc van hanh ((vi ca) OR (li ca)) viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ly nang) or (ty xang)) ma hoi. hieu van lam xuc van hanh ((vi ca) OR (li ca)) viet~".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ly nang) or (ty xang)) ma hoi. hieu van lam xuc van hanh ((vi ca) OR (li ca)) viet*.