Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su sach » so sach
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
vu cham » va cham, vu kham, tu cham
xang ma » tang ma, nang ma, sang ma
vu sach » vu bach, vu khach
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua

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: ((su sach) OR (vu sach)) ty xang ma hoi. hieu ((vu cham) OR (va cac)) xuc van hanh di cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty xang ma hoi. hieu ((vu cham) or (va cac)) xuc van hanh di cua vat~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ty xang ma hoi. hieu ((vu cham) or (va cac)) xuc van hanh di cua vat*.