Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
phan duc » pham duc, phan tu, phan dau
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va
tu sac » tu sach, tu cac, tu bac
cua cu » cua chu, cua cau, cua su
tu san » thu san, tu ban, tu can
x hoi » xa hoi, o hoi, x ho

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: ((tu sac) OR (tu san)) ky nang x hoi. ((hieu ve) OR (hieu van)) phan duc va hanh vai cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang x hoi. ((hieu ve) or (hieu van)) phan duc va hanh vai cua cu~".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang x hoi. ((hieu ve) or (hieu van)) phan duc va hanh vai cua cu*.