Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
lai cua » dai cua, hai cua, lai chau
xuc van » duc van, luc van, vuc van
va cam » va cham, va cao, va cai
y sang » _ sang, duy sang
ma hoi » mai hoi, ma hoa, me hoi
cua tu » cua tuc, cua su, cua cu

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 y sang ((ma hoi) OR (xa hoi)). hieu ((va cam) OR (va cac)) xuc van hanh lai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y sang ((ma hoi) or (xa hoi)). hieu ((va cam) OR (va cac)) xuc van hanh lai cua tu~".
• Adding a wildcard symbol may retrieve word variants: su sach y sang ((ma hoi) or (xa hoi)). hieu ((va cam) OR (va cac)) xuc van hanh lai cua tu*.