Perhaps you should try some spelling variations:
hanh tu » anh tu, danh tu
va hanh » van hanh, va thanh, va danh
ky tang » ky nang, ky dang, kho tang
vu cac » va cac, tu cac, vu cao
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
ve cac » va cac, vien cac
ma hoi » mai hoi, ma hoa, me hoi
tu cua » hu cua, vu 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: vu cac ky tang ((ma hoi) OR (xa hoi)). hieu ((ve cac) OR (va cam)) luc va hanh tu cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cac ky tang ((ma hoi) OR (xa hoi)). hieu ((ve cac) or (va cam)) luc va hanh tu cua vat~".
• Adding a wildcard symbol may retrieve word variants: vu cac ky tang ((ma hoi) OR (xa hoi)). hieu ((ve cac) or (va cam)) luc va hanh tu cua vat*.