Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
vuc van » duc van, luc van, thuc van
xuc van » duc van, luc van, xuc ban
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
ma hoi » xa hoi, ma hoa, me hoi
vai va » mai va, dai va, hai va
thiet » thieu

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 ky nang ((ma hoi) OR (mai hoi)). hieu ve cham ((xuc van) OR (vuc van)) hanh vai va thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cham ((xuc van) or (vuc van)) hanh vai va thiet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cham ((xuc van) or (vuc van)) hanh vai va thiet*.