Perhaps you should try some spelling variations:
ban hanh » ban hang
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
hanh le » thanh le, hanh ve, hanh de
cuu tre » cua tre, cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam
le cuu » le cua, le huu, le cau
o hoi » o hoc, o hai, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((((o hoi) or (co hoi))) or (xa hoi)). hieu ve cam xuc ban hanh le cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((((o hoi) OR (co hoi))) OR (xa hoi)). hieu ve cam xuc ban hanh le cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((((o hoi) or (co hoi))) or (xa hoi)). hieu ve cam xuc ban hanh le cuu tre*.