Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty tang » tay tang, ty xang, ty hang
tang ma » mang may, tang van
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
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 ty tang ma hoi. hieu ((ve cham) OR (va cam)) xuc van hanh di cua vat~.
• Adding a wildcard symbol may retrieve word variants: su sach ty tang ma hoi. hieu ((ve cham) or (va cam)) xuc van hanh di cua vat*.