Perhaps you should try some spelling variations:
phan duc » pham duc, phan tu, phan dau
hanh vai » hanh vi, hanh va, hanh tai
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
san ky » sang ky, ban ky, tan ky
cua cu » cua chu, cua cau, cua su
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 ((san ky) OR (((dan ky) OR (van ky)))) nang x hoi. hieu ve phan duc va hanh vai cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) or (((dan ky) OR (van ky)))) nang x hoi. hieu ve phan duc va hanh vai cua cu~".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (((dan ky) OR (van ky)))) nang x hoi. hieu ve phan duc va hanh vai cua cu*.