Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, hinh tai
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
han tai » hang tai, nhan tai, van tai
tu van » tu va
co hai » co dai, co hoi, o hai
ve cam » ve cham, ve cac, va cam
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.

• Performing a fuzzy search may retrieve terms with similar spellings: tu van ky nang ((x hoi) or (co hai)). hieu ve cam duc ban ((hanh tai) OR (han tai)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky nang ((x hoi) OR (co hai)). hieu ve cam duc ban ((hanh tai) OR (han tai)) cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky nang ((x hoi) or (co hai)). hieu ve cam duc ban ((hanh tai) OR (han tai)) cua cu*".