Perhaps you should try some spelling variations:
phan duc » phan tu, phan dau, tran duc
hanh vai » hanh va, hanh tai, hanh van
hieu ke » hieu kem, chieu ke, hieu ky
tu ban » thu ban, te ban
ban ky » van ky, dan ky
nang o » nang co, nang ho, nang ro
cua cu » cua chu, cua cau, cua su
o hoi » co hoi, o hoc, o hai

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