Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
tai cua » thai cua, tai cuc, tri cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ve cam » ve cham, ve cac, va cam
cua su » qua su
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang ((x hoi) or (o hoi)). hieu ve cam duc ban hanh tai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang ((x hoi) OR (o hoi)). hieu ve cam duc ban hanh tai cua su.
• Adding a wildcard symbol may retrieve word variants: tu san ky nang ((x hoi) or (o hoi)). hieu ve cam duc ban hanh tai cua su*.